In Seaford High school the new kid ,Jack meets three boys, Jerry, Eddie and Milton and a girl named Kim. They all do karate and Jack joins Jerry, Eddie, and Milton at lunch, and soon are picked on by Red belts in the Black Dragon Dojo and Jack tries to settle things and gets in a fight with kids from the rival dojo, the Black Dragons, that at the time, Kim was a member of the Black Dragons. Jerry Eddie and Milton learn from their sensei Rudy that the Bobby Wasabi Martial Arts Academy is in danger of closing. So Jerry, Eddie and Milton convnce Rudy to get Jack to join after he crashes through the wall. Rudy lies to Jack and says he will go to juvie if he does not join and helps them get 2 belts. Later Rudy let his secret slip and Jack quits until he hears the disapointment of his friends. Jack joins to win the tourtement. Jack competes against Kim, but after the Sensei for the Black Dragon cheats, Kim quits and does not fight Jack. Jack does a Bobby Wasabi move to win the tournament and keep the dojo running. Also in this episode, Kim from Black Dragon changes to Bobby Wasabi`s dojo.

Jerry signs the gang up for the “Hottest Dance Crew Competition” at the mall, but quickly learns they can’t dance. Smooth (Roshon Fegan), the leader of the reigning champs, the Step Brotherz, offers Jerry a spot on his crew and he eagerly joins. But when Smooth steals Jerry’s signature dance move for the competition, Jerry realizes he betrayed his friends. Meanwhile, Rudy and Marge host an infomercial for Pocket Ninja but Rudy messes up.

The Black Dragons want to destroy the mall’s annual Halloween Boo-Stravaganza. Jack assures the others that he’s not afraid of anything, including the Black Dragons. A Clown from Circus Burger causes Jack to flip-out showing that he does have one fear - that of clowns. Now the Dragons will stop at nothing to use that fear against him. Rudy meets a catwoman and tries to find out who she really is. We find out that she's much closer to Jerry than Rudy!

Eddie pretends that one of the Harlem Globetrotter's is his uncle.

To prove to Rudy that he's capable of moving into his own Sensei position, Jack enters a tournament only to find himself facing Rudy as a competitor.