When he was a teen-and the planet was being ravaged by an apocalyptic event that caused animals to mutate into giant creatures-orphaned Joel (Dylan O'Brien) promised his girlfriend Aimee (Jessica Henwick) that he'd find her again some day. Tipped to her cross-country whereabouts seven years later, he leaves his survivors' colony to find her-tackling uncanny perils along the way. Engaging doomsday actioner-meets-John Hughes flick co-stars Michael Rooker, Dan Ewing, Ellen Hollman. 109 min. Widescreen; Soundtrack English.