Babs, Buster, and Plucky spend a fun-filled day in Wackyland with Gogo. All of a sudden, a train pulls into town advertising a big circus. Gogo freaks out and runs away. The gang finds out why Gogo ran off so quickly. The reason: Silas Wonder has a sideshow act with stolen characters from Wackyland: a dragon, a Sphinx, and a Pegasus. Gogo breaks in to try to free his friends, but he ends up getting caught himself. Gogo finds himself fading away and getting weak like the rest of the captives. The bunnies try to help Gogo, but Plucky wants to go into the circus business. They dress up like a three-headed rabbit duck and gets into a high-diving act, where they are expected to dive in a thimble of lime jello. After bypassing that obstacle, they free Gogo's friends and send them back to Wackyland where they get better.