|Air date||December 4, 2009|
|Previous episode||Supersize Timmy|
|Next episode||Cheetah Cheater|
Lock Out is the fiftith episode of Shaun the Sheep.
While preparing for bed, the farmer manages to lock himself out of the house and is stuck outside in his pyjamas. He decides to spend the night in the barn, but his incessant snoring drives the flock mad. Shaun concocts a plan to return him to his bed without waking him up.