The Bannister family has a new pet. Zeus was originally a hero dog in the police special forces. However, in the eyes of the Bannister family, he does not seem to be qualified to be a reliable guard dog. On Christmas Eve, when the Bannister family went out, two burglars broke into the house. It was time for Zeus to show his skills. (Text: life_is_good@YDY) The Bannister family's new addition, Zeus (voiced by Mario Lopez), a former K-9 police hero, appears to be less than the dependable guard dog the family needs. However, when two burglars (led by Dean Cain) set out to break into the Bannister's home while they're away for Christmas Eve, Zeus seizes the chance to be a dog, providing every dog-even this one-hashis day.