Ep 22. Johnny's Got a Wart! / Sleepover At Johnny's

Johnny Test season 4 episode 22 is titled "Johnny's Got a Wart! / Sleepover At Johnny's." In the first part of the episode, "Johnny's Got a Wart!," Johnny discovers he has a huge wart on his finger, causing him to freak out. He tries to find ways to get rid of it but nothing seems to work. His sisters, Susan and Mary, offer to help and create various potions and inventions to remove the wart, but their attempts only make the wart grow bigger. Finally, they come up with a solution that involves Johnny's favorite food, and they successfully remove the wart.

In the second part of the episode, "Sleepover At Johnny's," Johnny invites his friends, Dukey, Gil, and Sissy, over for a sleepover. His sisters warn him that it's not a good idea to mix his friends with their experiments, but Johnny doesn't listen and decides to show off some of his sisters' inventions. As the night progresses, things start to go wrong when the inventions malfunction and cause chaos in the house. The group must work together to fix the situation before Johnny's parents find out and punish them.

Overall, this episode is filled with humorous mishaps and creative inventions, showcasing the dynamic between Johnny and his sisters and his friendships with his peers.