George, Allie, and Bill really flip for flips when they join a gymnastics class and then flip-out when they realize the class is only once a week! But George has an idea-build their own backyard gym so they can practice every day.
毎年恒例の体操競技会の日、ジョージが虫を追いかけて、体操選手さながらに競技場の種目を次々とこなしていくのを見て、体操教室の先生はジョージを教室に誘う。