The addition to The Bannister family comes in the form of a new pet named Zeus. Previously serving as a hero dog in the police special forces, Zeus might not initially meet the Bannisters' expectations for a dependable watchdog. However, on the eve of Christmas, when the Bannister family is away, two burglars break into their home. It is then that Zeus finally gets the chance to showcase his courageous spirit, proving that even a dog like him can have its moment to shine. (文：life_is_good@YDY) Welcoming Zeus (voiced by Mario Lopez) into the Bannister family brings the presence of this former K-9 police dog hero, who doesn't quite fit the bill as the reliable guard dog they envisioned. Nonetheless, when a pair of thieves (led by Dean Cain) attempt to infiltrate the Bannister household on Christmas Eve, Zeus seizes the opportunity to become a hero, demonstrating that every dog—even one like him—has its day to shine.