Where is your shirt, man . Whats behind the bizarre flash of extreme weather this week . First the nightline 5. I said i really cant stay baby its cold outside i have to go away baby its cold outside i really cant stay baby its cold outside you never know who youll meet at barnes noble. Number one in just 60 seconds. Good even. Thank you for joining us. Bill cosby strikes back launching a counter lawsuit against seven of his accusers. Charging them with damaging his reputation. These seven are only a fraction of the more than 50 women who have accused cosby of section assault, drugging or rape. Tonight the embattled comedian tries to change the narrative. Heres abcs linsey davis. But he had no right to do that. I had really no idea what was happening. The next thing i remember i was on the couch and he was removing my underwear. Reporter its one of the big esscandals to rock hollywood this year. To date more than 50 women accusing the legendary bill cosby of sexual assault, drugging, or rain rain. Today bill cosby is turning the tables saying hes the victim and firing back at seven of the women who are suing him for defamation, accusing them of making false accusations of section a salt for financial gain. We are now taking steps in order to right a wrong. And yes, returning and restoring mr. Cosbys legacy, reputation, good name, philanthropy endeavors and career. Reporter the counter suit filed in Massachusetts Federal Court claims the accusations of Sexual Misconduct against companies by are defamation in their own right and have tarnished companies bys reputation and career without a shred of proof. We recognize that there is difficulty there in finding witnesses, theres difficulty there in pulling up records, theres difficulty in doing all the things frankly that the media hasnt required these accusers to have to do. Reporter they claim the allegations made public in the media ruined potential deals for cosby with netflix and nbc. Joe camerota represents all seven women. They believe they will be found to be the truthtellers and as a result they will have their good name and reputation restored. Reporter cosbys counter suit comes after a federal judge in massachusetts refused to throw out the womens suit against him. Bill companiesbys effectively upping the ante. Saying next, okay, im also going to sue you. Because everything that youve said about me isnt true. Reporter barbara bowman, named in the counter suit and one of cosbys most vocal accusers, has said shes come forward not for personal gain but to help other women. My goal is not to ruin him, take his livelihood away, to witch hunt him. My goal is to speak and to create a safety net for other victims. Reporter she and a dozen other women told their stories in a es documentary cosby the women speak produced by abcs Lincoln Square productions. He really knew how to zero in on my insecurities and vulnerabilities. Reporter 1985, bowman was living in denver, a 17yearold appearing model and actress. He would come to town and scout for new talent. And i was selected as one of the talent. Reporter she claims cosby manipulated her into trusting him and later drugged and sexually assaulted her multiple times. I had one glass of wine. The next thing i knew, i was coming to, slumped over the toilet, throwing up. And he was looming over me in a white robe. And i was in my panties and a white tshirt. Reporter she says there was another incident in a hotel in atlantic city. He attacked me. He came after me. Like a wild animal. And tried to rape me. And i was coherent enough to fight and scratch and scream and cry. And i fought so hard that he eventually just threw me away, off the bed, and he looked me square in the eye and he said, i had better never, ever hear your name or see your face again. Reporter bowman said she wided to a girlfriend years later who took her to a lawyer. When i went to a lawyer in 89, he laughed me out of the office. Whos going to believe me . Reporter bowman didnt seek logical action within the statute of limitations. But over the year shes told her story to multiple media outlets, an op said entitled bill companies by raped me, why did it take 30 years for people to believe my story . Days later cosbys team said, over the past several weeks discredited allegations against bill crosby have resurfaced. The fact that theyre being repeated does not make them true. Mr. Cosby does not intend to dignify these allegations with any comment. Statements like this are at the core of the defamation case. Each of the seven accusers allegations against cosby disputed by his representatives, opening the door for legal action in the first place. These paragraphs are suing bill companies by not for the actions themselves, theyre getting creative here and saying, we get it but were still going to sue him for defamation for what his representatives said about us. Reporter cosby has never been charged with a crime in regard to any of the accusations lodged against him. And his attorneys have said he denies all allegations. In todays new filing he specifically denies that the statements he or his representatives made about any of the seven women were defamatory, adding that their accusations caused him shame and motorfication. And he was behind me having sex with me. Reporter terese, named in the counter suit, spoke to abc in 2014. She says she was 19 years old when cosby allegedly drugged and raped her in a las vegas dressing room after a show. But she was too intimidated to report it tet. I was sorry all my life that i wasnt more powerful. Im sorry i put myself in circumstances where i should have known better. Reporter the circumstances of her relationship with cosby are complicated. She admits she continued to see him socially and may have had sex with him again but that it was never consensual. I never was an active participant in any section sexual intercourse with him. Reporter she says shes not interested in seeing cosby go to prison. The statute of limitations have long expired. But by coming forward she hopes cosby is held accountable. Im not a punishing kind of person. I have been sorry for 38 years. And now its time for him to be sorry. Reporter todays counter suit cites cosbys work as a philanthropist and comedian saying cosby prides himself in the legacy and reputation hes earned throughout his life. But many of his accusers say its precisely that on and offcamera reputation as americas dad, the wholesome Cliff Huxtable on the cosby show, which made so it hard for them to come forward. Hes dr. Huxtable, americas favorite dad. Reporter attorney gloria allred, who represents 26 of the more than 50 women who have come forward are released a statement to abc news saying, such a tactic will not deter courageous women from fighting the battle against him. Cosbys legal action comes amid a half dozen other legal battles with other accusers and on the same way Boston University announced its revoking his honorary degree, one of the more than dozen institutes to do so in the past year. You have to believe that bill compani cosby isnt doing it because he wants to win money from these women. You have to believe bill cosbys doing it to try to get his reputation back. Reporter according to his attorney companies by is seeking compensatory and punitive damages and its fair to say there may be more of these def nation lawsuits filed on cosbys behalf in the future. The problem with filing this lawsuit now is when it comes to the court of public opinion, this lawsuit may be way too late for bill cosby. Reporter for nightline, im linsey davis in new york. Next, she took the world by surprise in the hunger games. Now Jennifer Lawrence is trading in her bow and arrow for a mop if . Later the bizarre Winter Weather prompted one guy to go shirtless. With my moderate to severe ulcerative colitis, the possibility of a flare was almost always on my mind. Thinking about what to avoid, where to go. And how to deal with my uc. To me, that was normal. Until i talked to my doctor. She told me that humira helps people like me get uc under control and keep it under control when certain medications havent worked well enough. Humira can lower your ability to fight infections, including tuberculosis. Serious, sometimes fatal infections and cancers, including lymphoma, have happened; as have blood, liver, and nervous system problems, serious allergic reactions, and new or worsening heart failure. Before treatment, get tested for tb. Tell your doctor if youve been to areas where certain fungal infections are common, and if youve had tb, hepatitis b, are prone to infections, or have flulike symptoms or sores. Dont start humira if you have an infection. Raise your expectations. Ask your gastroenterologist about humira. With humira, control is possible. Starthe first star iht, see tonight i wish i may, i wish i might, have the wish i wish tonight wishes do come true. The lincoln wish list event is on. Right now get exceptional offers on the entire lincoln family. For a limited time your choice of mkc, mkz gas or hybrid for 369 a month with zero due at signing. During red lobsters ultimate seafood celebration. With jazzed up new dishes like the decadent grand seafood feast and the ultimate woodgrilled feast why wait to celebrate . So hurry in, it ends soon. Take the zantac it challenge pill works fast . Zantac works in as little as 30 minutes. Nexium can take 24 hours. When heartburn strikes, take zantac for faster relief than nexium or your money back. Take the zantac it challenge. Layover. 24 hours. Hello, reykjavik. Oh, so thats how you spell it. What are you looking at . Oh, cool. Hungry. Fish, anyone . Hello, seventh waterfall of the day. Hello, duck boat. Hello, sheep . Oh right itchy icelandic sweaters and no foreign transaction fees. Sweet. One last look. Ahh. Triple points. And were off. Whats next . Wherever the journey takes you, carry American Express gold. Its more than a card. Its the gear that gets it done. The allstar team that brought us Silver Linings playbook is back together. Bradley cooper, jennifer lawyer rence, Robert De Niro combine forces again. Whats the moment cooper says he bonded with lawrence . Heres 20 20 coanchor Elizabeth Vargas. What are you doing here . Reporter in joy jennifer reunites with her Silver Linings playbook and American Hustle costars bradley cop cooper and Robert De Niro playing the woman who invented the miracle mop. All races and all classes can meet and make whatever opportunities they can. A lot of people have talked about the fact that so many of you who have worked so many times together now have a special chemistry. David, what sit . What sit that bradley and jennifer have . When we met her she was 20 years old. She had not had unhunger games yet. She asked Robert De Niro what it was like to be recognized on the street. I asked cooper. About tabloids. The tabloids say youre dating j. Lo, is that true . Well . I do remember that. Then david called action reporter its loosely based on the rags to riches story of joy man naun go, who became a mega inventor, business mogul, Home Shopping superstar. I dont go through a single day of my life without using this product. Reporter Edgar Ramirez plays joys exhusband who lives in her basement. Julia madsen plays her mother. Youre like a gas leak. We dont smell you, dont see you, but youre killing us all. How many of you met joy . We all did. What did you think of her . Awesome. Fantastic. Shes amazing. She really inspired david and i both with joys energy. She just has this very calm, strong, very kind, very maternal, strength. And it inspired both of us. We were really impressed by her. Jimmy joy worked with zone rivers at qvc. In the movie Melissa Rivers make at cameo as her mother. You look great, good luck today. Reporter alongside Robert De Niros daughter drina. Roberts daughter, whos completely transformed, she and Melissa Rivers, daughter of joan rivers, could have gone for an hour, we were mesmerized by them. In the film the seen with joan rivers, with melissa playing her mom, definitely pulled a heart string in me for sure. Reporter Bradley Cooper plays neil walker, the qvc executive who gives joy her big break selling the miracle mop on live television. Do you know what qvc stands for, joy . No, i dont. Quality, value, convenience. Im curious, as actors do you know you have that chemistry . Yes. Do you only see it yes . Yeah, i was just thinking about when he was talking. Like yeah, what sit like when im with you, i feel very safe. Safe . I feel like i can turn my brain off as an actor and just yeah, i just feel safe i guess is the word. David made us a bizarre kind of form of siblings in a way. Really . I think going through having to learn that dance routine. Youre right. We didnt know each other at all. Silver linings playbook. I think that had a lot to do with it. Reporter Robert De Niro is joys father. He has no place else to go. Hes been living in my house two years. Dad, im so sorry. Tonys living in the basement. Your exhusband shouldnt be living in your basement. Thats not the proper way to be divorced. Well, hes a loving father. I think hes i guess we were talking about this hes a romantic. Its a family, you dont know what the hells going on, whos what, why, the reasons, you have to learn to forgive. Maybe you dont forgive certain bad behavior. And thats my situation with her. You encourage her but at the same time you shut her down. Yeah, exactly. Exactly. Its painful sometimes to watch. Youre sort of laughing but youre thinking, ouch. Yeah, exactly. Yeah, yeah. I was valedictorian in high school. I got into a fancy college. I stayed here because my parents are getting divorced. Reporter its no wonder russell cast lawrence in his very first film with a female lead. A doctor, a lawyer, a nice man instead of this i dont know what to call this guy. Are you seriously talking about this right now . We have to do it in a new way. Had to be quite. Quiet fierceness. Which many people have said is more powerful, first role weve done where shes not crazy. Reporter the real joy approves. I never had a doubt. Not 1 minute did i ever have a doubt he was going to do something amazing. Having jennifer play the role of joy, it doesnt get better than that. Reporter lawrence dug deep for the role, even learning a little spanish from costar Edgar Ramirez. [ speaking spanish ] howd she do in spanish. Shes great. Really great teacher. Youre a great student. Reporter as joys depressed mother, virginia madsens character forces joy to be the de facto matriarch. I feel so much better about being with dont answer that. Theres no such thing as a normal family. All families are eccentric. All families are a little dysfunctional. Reporter mangano may have served as the films executive producer but the inside scoop on Home Shopping came from one unlikely shopper. Bradley coopers mother was an unofficial consultant on the picture because she religiously watched the show. This was a precursor of the internet, of 24 hour she ordered a couple of products the other day. Your moms a big qvc shopper . Massive. She told me why she loves spokes models. They were the only people she could stay up all night watching. Have any of you ever bought anything on qvc . Cooper coopers mother i tried but i forgot i tivod the episode i was watching, so it wasnt live. I love that youre using the term tivo, which makes you as old as me. You tivod qvc . When i wanted to watch joy. Reporter david orussells golden touch is translating into golden globe nominations. She should be in a skirt, shes got long legs. Joan rivers wants me in a skirt, i want pants. Youve been nominated for a golden globe, best actress. Amy schumer, one of your best friends, said youre going down. I hope i am. I want to see that sweet little ass up on that stage. Im trying to organize us wearing the same exact thing. Thats my dream. You going to root for her, for you . Were both rooting for her. Reporter for nightline, im Elizabeth Vargas in new york city. Joy hits theaters christmas day. And next, whats behind the crazy weather taking the country by storm . Is giving you more. Americas bestselling brand the ford holiday sales event. With 0 financing for 60 months on 2015 f150 and focus and 2016 fusion and escape. Plus 1,000 dollars Holiday Bonus cash on 2015 focus and 2016 fusion and escape. Its the best gift ever. Now during the ford holiday sales event get 0 financing for 60 months plus 1,000 dollars Holiday Bonus cash on select vehicles. See your local ford dealer. Finally tonight, whats up with the weather . Its a question heard round the country these days. Rain and snow out west, its beginning to feel a lot like spring on the east coast. Abcs geo benitez explains. Reporter if you were dreaming of an idyllic White Christmas im dreaming of a White Christmas. Reporter you may be out of luck. Over the weekend in new york, High Temperatures were right around average. For the month of may. Holiday shoppers picked out Christmas Trees in shorts. Last year in november, i was in the middle of a buffalo blizzard. The temperature right now, it feels like 1 degree. And behind me, that is a car. Completely buried in snow. And take a look at this spot right now, no snow. In fact, buffalo hit a record high today of 71 degrees. On december 14 the. In which i, the shirtless runner who turned heads and went viral, with a little help from wgntv. I love running in the rain. And im also single. Reporter this month over 1,000 High Temperature records have been tied or broken across the country. The cause . Experts say the band of cold air around the arctic called the arc tig oscillation has stayed near the north pole, keeping the cold at bay for much of the u. S. In some places its a different kind of extreme. Over the weekend, bellemont, arizona, took the prize as the coldest place in the lower 48. A whiteout in kansas. In texas, tornados. This winter is predicted to be one of the warmest ever on record. Dont put away your