Meatball is a carefree, wisecracking country dog. Cassie is Hollywood's most pampered pet They couldn't be more different, and when their owners marry and move the entire blended family to the rural north, the claws come out It's only when two bumbling thieves scheme to break into their house, that these four-legged foes must team up to defend their home. This riotously funny and heartwarming comedy proves that it takes all breeds to make a family.