999: Killer On The Line (2016)

S2E14 Hide And Squeak

The Farmer is on edge when an adorable mouse shows up at the farmhouse, prompting him to instruct Pidsley the cat to get rid of it. Seeking safety, the mouse hides in Shaun's fleece, and the flock rallies around Shaun, urging him to shield their newfound companion from the relentless cat.