A hole in the roof means George and the Man with the Yellow Hat must sleep in the living room while their bedrooms are being repaired. But their adventure quickly turns into a disaster when George's nightly trips to the kitchen keep the Man awake at night.

近々開催されるトライアスロンのレースに向けて、出場予定の黄色い帽子のおじさんは日々トレーニングに励む。そんな時、別荘の屋根に穴があき、修理のためおじさんとジョージは1階のリビングで寝ることになり…。