School’s out for summer… but not at the Bannister house! When their beloved dog Zeus destroys a party planned by Belinda, Grandma suggests they send him to obedience school. Things start off on the wrong paw when Zeus’s owner George runs afoul of the school’s no-nonsense instructor Vernon and Zeus manages to fail every lesson. To make matters worse, Vernon’s K-9 assistant, Apollo makes class no dog-gone fun. With Zeus failing to improve, the Bannister children Kara and Ben fear that the pound may be Zeus’s next stop. Desperate to turn things around, Zeus enlists the help of a janitor, Mr. Lee, who shares his unique training methods. Will Zeus’ newfound skills help him win top dog at the school’s showcase and foil a trio of bumbling thieves determined to make this a bummer summer?