Wheelie is meeting someone coming in on a ship and Chopper and his bunch see Wheelie and start to chase him. A car jumps off the ship and scares Chopper and his bunch off the pier. He introduces himself to Wheelie as Black Belt Fuji. Wheelie wants to give him a tour and Black Belt is happy to go on the tour with Wheelie.
Chopper and his bunch try several times to cause problems for Wheelie and his visitor and they fail each time mainly because of Black Belt's karate skills. He kicks away a wooden roadblock that the Chopper bunch builds and then destroys a brick wall that they build. Chopper and the bunch finally are able to separate Wheelie from his friend and they start to chase him. Black Belt sees them and follows and ambushes Chopper and the bunch.
Black Belt is going back home on the ship when Chopper and the bunch show up and charge at Wheelie. Wheelie stands his ground and starts to make karate moves. Chopper and the bunch run off and Black Belt congratulates Wheelie and a good move.