>> what is your emergency? >> my mom is having a heart attack. >> reporter: ethan's mom was lying face down, unresponsive. >> mom, mom. mom. >> reporter: so, ethan did the thing his mother, who has a history of health problems, trained him to do. he called for help. >> my mom teached me how to do it. >> reporter: while 911 operators used technology to find their exact address, ethan was able to help guide them in. >> go turn your lights on and off a bunch of times, okay? >> reporter: and when he flicked the lights off and on, firefighters found the house. >> they're going to help your momma. >> okay. >> okay. >> your mommy is very, very fortunate have you as her son who cares for her and takes care of her. and you're just an amazing and wonderful little boy. >> i'm very proud. i highly encourage parents to