Jennifer Jones Lee hosts your Monday morning Wake Up Call. An excessive heat warning has been issued for the Los Angeles area, with temperatures expected to surpass 100 degrees yet again. The White House has warned Russia against using nuclear weapons, threatening "catastrophic consequences." Do your animals have dreams when they make those strange sounds in their sleep? Hannah Stember of the Best Friends Animal Society joins Jen to share some insight. Gina Sunseri talks about crashing a satellite into an asteroid for science. And ABC's Tom Rivers highlights who's expected to win the Prime Minister seat in Italy.