Itsy's little friend Leslie wants to study karate. She registers to take lessons at Adrienne's studio. Itsy decides to join her. On the day of the first lesson, a famous karate master is expected. When the exterminator passes the building he discovers the spider on his spider radar. When he storms into the studio, Adrienne mistakes him for the karate master. The exterminator starts his fight against Itsy - and leaves the studio in ruins while Itsy enjoys himself tremendously ....