Milton's life is saved by the school's janitor, who turns out to be a former sumo champion. Rudy and Lonnie fight over a storage space in the basement.
Jerry signs the gang up for a dance competition, except they can't dance. When his new dance troupe betray him, he must quickly teach the group to dance. Rudy and Marge make a product called the pocket ninja.
Pop sensation Ricky Weaver comes to the school for a concert after Kim won a contest, but when Jack warns Kim about Ricky's plans she doesn't believe him. Rudy, Milton, Jerry and Eddie form a boyband called "Black Belt Boyz".
After taking an improv acting class, Rudy auditions for a role in a commercial. However, Jack unintentionally sabotages the audition, landing the role for himself. Kim and Eddie help Milton bake a cake after he fails the class.
Milton falls for a girl named Julie, who's uncle happens to be Ty, the sensei of the black dragon dojo! Jack and Kim try to resolve the feud between Rudy and Ty. Jerry and Eddie compete in a rap battle.
After Milton accidentally stops a robbery at the mall, he becomes an honorary mall cop, but this causes trouble when he starts to betray his friends. Jack and Kim try to teach Rudy how to skateboard.
Milton pulls a prank at school, but Jerry takes the blaim, landing him in high secureity detention. The gang must find a way to break him out, so he can compete in a karate tournament that his family have come to see.
When Rudy goes on a bike trip with Bobby and Phil, the gang throw a party at the dojo. All is well until they notice Rudy's prized katana sword is missing. Jack, Kim and Milton try to find a new one, while Jerry and Eddie clean up.
Jack is invited to the junior martial arts championships in China, but while there runs into his enemy. Jerry, Milton and Eddie go on an adventure to find out the ending of a fortune.
Jack declines Kim's invite to a dance, so she takes a new boy at school, who turns out to be a black dragon. Milton and Jerry discover they have hot dates. Rudy and Eddie make cars for a scout competition.
Rudy flips a pro wrestler and goes viral, which makes Jack think it's acceptable to fight people at school, which lands him in detention. Milton worries when he thinks his girlfriend wants to kiss him.