After crashing on their recently built go-kart, Shaun and the Flock find themselves transported back to a time when the Farmer was much younger and just learning how to run a farm.

It's talent-show time on the farm, and the roosters and chickens are banding together in hopes of beating out their rivals, the sheep. Meanwhile, Shirley, a sheep whose flair for singing is as large as her frame, has a big problem--a massive case of stage fright. Can Shaun the sheep convince his jittery friend to wow the mole judges and take home the prize?

One dark, misty night at Mossy Bottom Farm, a starving creature creeps silently through the farmyard, waiting to feed. Well, actually, it's just Bitzer the sheepdog with a growling stomach, holding his clipboard as he checks on the flock and chickens. But wait?-what's that howl that's making his fur stand on end? Is it Shaun the sheep playing one of his pranks? The Farmer practicing his trombone? Suddenly the moon appears, and there it is: a hulking...