S1, E3: A blockage in the water pipes beneath the town has the mayor worried at the Roadside City fountain unveiling. What could be clogging the pipes? In order to solve the mystery, Carl's Rescue Crew has to get tiny. This episode features a task force made up of Tammy and her tunneling machine, Captain Mary and her submarine, and Roadside City's mad scientist from the future, Dr. Toodleoo!