Artistic gymnasts Alice and Erin team up with trampolinists Morgan and Evie on a mission to save the planet - one leotard at a time - as they present their ideas to one of the leading leotard manufacturers in an effort to make their leotards more eco-friendly. Seb and Shakiem have a big competition looming and are having a motivational sleepover before heading to the British Tumbling Championships, where they go head to head with the best tumblers in Britain. The competition is tough, but can the boys do enough to make their mums and their coach proud? Superstar gymnasts Joe Fraser and Dom Cunningham are back with a new ‘tuck-back’ challenge for the trampolinists, which sends everyone's head spinning!