Comic adventures following the staff and students of a martial-arts academy. In the opener, a new student (Leo Howard) with expert karate skills joins the dojo after displaying his moves during a cafeteria food fight.
Rudy throws himself a birthday party, and Jack invites Rudy's mentor and boss, Bobby Wasabi, to attend. Unfortunately, Rudy doesn't recognize his hero and is fired from his job after he accidentally flips Bobby.
Rudy and the gang try to prevent a life-size wax statue of dojo owner Bobby Wasabi from melting during a heat wave. Meanwhile, Kim and Milton turn the mall courtyard into a beach and charge for chairs and sunscreen.
Milton becomes an honorary security guard after he thwarts a robbery at the mall, but his power is put to the test when thieves try to steal from the dojo. Meanwhile, Jack teaches Rudy how to skateboard.
Jerry gets kicked in the ribs and ends up in a hospital where Kim volunteers as a candy striper. When Jerry, Milton and Eddie visit him, they stumble into the maternity ward and get the babies mixed up.
Jack visits China to participate in the Junior World Karate Championship, where he faces an opponent from his past. Meanwhile, Eddie, Jerry and Milton get lost while trying to decipher the meaning of a fortune-cookie proverb.