5:00 a.m. in the morning, set your dvrs and wake up with robin and me. we'll be leading the coverage. history in the making. when an american marries a prince here. get your coffee. it's early. we'll definitely have ours. we'll see you in the morning. there's much more ahead on "abc world news tonight." severe storms hitting the east. the flood watch across nine states. the house struck by lightning. the alerts up and down the east coast. rob marciano standing by. a new headline about the russian poison plot. right here in the uk. remember that former spy poisoned in broad daylight. they thought he would not live. what happened today and tonight vladimir putin now responding. . from new york city the rush hour collision outside of one of america's most busiest tunnels. a lot more news ahead. but why go back there, when you can stay home, with neulasta onpro? strong chemo can put you at risk of serious infection, which could lead to hospitalizations.