When a pooch named Jerry, a sassy cat named Mandy, and their opinionated squawker buddy Frank the parrot are left home all alone, they do what any pet does when their owners go away: watch funny pets on TV.

Max has an active imagination, who will throw a fit if others don't go along with what he wants. Following an incident with his sister Claire and her friends, Max throws a tantrum when his mother pays more attention to her boyfriend than to him - runs away from home. Wearing his wolf costume at the time, Max not only runs away physically, but runs toward a world in his imagination. This world, an ocean away, is inhabited by large wild beasts, including...