Chet greets Dewey, Sid, and Monty after church on Sunday and notices that they seem relieved that he has forgiven them, which he has now that he has set his own prank into motion. Sid invites Chet to go swimming with them after church and Chet agrees. Uncle Jerry is proud of Chet for not holding grudges, and Chet can barely stop himself from telling Uncle Jerry about the prank. Chet sees a girl from school, Minnie Marston, on whom he has a crush. She smiles at him, but he cannot focus, waving briefly at her before hurrying home to gather his things.

Inside his supply bag, Chet has a ketchup bottle, work boots, and a white cap that he wears at work. He hurries to the creek, arriving before anyone else and staging the scene for his prank. Wanting the boys to think that the Creek Devil has captured him, he dumps ketchup on the dock, creating a trail of fake blood. He leaves one of the boots and his cap behind. Chet takes off the rest of his clothes and jumps into the water, covering himself in the thick mud coating the banks of the creek.