"Ballroom Blitz," the TV dance sensation, is coming to Spring City! Bob and the team are building a sprung dance floor for the occasion to appease the star dancer, Sylvain de Souza. Team Bob and the Spring City Rockets catch dance fever, but Lofty's dancing attempts only result in him damaging part of the dance floor. Despite Lofty's self-doubt, Sylvain encourages him to follow his dreams. The team rallies to repair the floor in time for the performance, and Wendy takes the stage to dance with Sylvain.