S1, E2: Someone starts running practical jokes on the rest of the gang. Vale receives lots of calls from his ex-boyfriend and Roger starts to feel a little jealous. Clari and Pau decide to investigate in order to unmask the alleged King of Jokes. They are sure that Roger is behind all of it, and convince the rest to teach him a lesson. Someone selling cookies knocks at the door and Wally (who loves cookies) decides to buy some, but he accidentally drops the festival tickets and the gang realizes who the real King of Jokes was.