SpongeBob is constantly practicing karate with Sandy, but Mr. Krabs forbids SpongeBob to do karate after attacking the customers at the Krusty Krab and threatens to fire him for good. They attempt to forget karate, and go to the park instead. However, while slicing sandwiches, they begin doing karate again, which is seen by Mr. Krabs. SpongeBob gives Mr. Krabs’s permission to fire him. However, Mr. Krabs finds out that karate chops can replace knives, so he forces SpongeBob and Sandy to slice Krabby Patties this way, which has earned him more money.