In New York City, a news report is broadcast informing the world that a mission to stop an incoming 70-mile wide asteroid known as "Matilda" has failed and that the asteroid will make impact in three weeks, destroying all life on Earth. Dodge Petersen (Steve Carell) and his wife, Linda (Nancy Carell), listen to the broadcast from the side of the road. When Dodge expresses disinterest, Linda disgustedly leaves the vehicle without a word. At home, Dodge reminisces about his high school sweetheart, Olivia, when he notices his neighbor Penny (Keira Knightley) crying on the fire escape. She has just broken up with her boyfriend Owen (Adam Brody) for making her miss her last opportunity to see her family in England. At her apartment, Penny gives Dodge three years' worth of his mail that was incorrectly delivered to her and, in the process, unwittingly tells him that his wife was having an affair. Dodge storms off into the night, guzzling codeine-laced cough syrup and window cleaner in a suicide attempt. He wakes up in a park, with a dog tethered to his foot and a note on his sweater reading "Sorry", which becomes the dog's name. Dodge takes Sorry home, opens the old mail, and is surprised to discover a three-month-old letter from Olivia, which explains that he was "the love of her life." Later, a riot breaks out on his block. Dodge and Penny abandon the self-centered Owen amid the rioters, with Dodge explaining to Penny that he knows someone who could fly her to England if she helps him find Olivia. She agrees, and the two set off with Sorry for Dodge's hometown in Delaware.