When Shaun decides to take the day off and have some fun, he gets a little more action than he bargained for. A mix up with the Farmer, a caravan and a very steep hill lead them all to the Big City and it’s up to Shaun and the flock to return everyone safely to the green grass of home. Shaun the sheep is tired of doing the same work at the farm everyday. He decides to take a day off. In order to do that, he needs to make sure the farmer doesn’t know. When more happens than they can handle, the sheep find their way in the big city. Now they need to get back to the farm. When the Farmer loses his memory while in the city, wily Shaun and the gang race to rescue him. But a zealous animal-control officer has other ideas.