Tired of working on the farm, the special sheep, Shaun, takes his flock and the farmer's dog, Bitzer, into his own "temporary escape plan" after an unexpected accident. Unfortunately, in the big city, the farmer is diagnosed with amnesia, that could possibly change their normal farm life forever, and the squad sets a plan in order to regain the farmer's memory and return to the farm. But, an animal control worker named Trumper intervenes in their plan.