Ep 21. Johnny Cakes / Johnny Tube

Johnny Test Season 4 Episode 21, titled "Johnny Cakes / Johnny Tube," follows the adventures of the 11-year-old boy genius Johnny Test, his loyal dog Dukey, and his twin sisters Susan and Mary as they embark on two exciting and hilarious adventures.

In the first part of the episode, "Johnny Cakes," Johnny wakes up feeling extra hungry and decides to make himself some breakfast. Susan and Mary, being the experimental scientists they are, decide to test out a new instant pancake mix they created. However, things quickly go haywire when Johnny accidentally sets the batter on fire, causing the entire lab to erupt into flames. Determined to make a successful batch of pancakes, Susan and Mary use their genius skills to create a device that can instantly cook pancakes. But when Johnny tries to eat too many pancakes at once, chaos ensues, and the trio must work together to put things right.

In the second part of the episode, "Johnny Tube," Johnny comes up with a new way to make use of his time on the toilet: by creating a water slide that leads from the bathroom to the pool. But when he and Dukey accidentally flush themselves down the toilet and get sucked into a series of pipes, they find themselves on a wild and dangerous adventure deep underground. With the help of some friendly rats, Johnny and Dukey must navigate their way through the winding pipes, avoid the various obstacles, and ultimately find a way out before it's too late.

Throughout the episode, viewers are treated to the usual high-energy humor and zany antics that have become a hallmark of the Johnny Test series. From exploding pancakes to high-speed water slides, Johnny Cakes / Johnny Tube is sure to keep audiences laughing and entertained from start to finish.