Grandpa in My Pocket: Nothing Stops Grandpa (2010)

Fourth instalment of the CBeebies children's comedy drama following the adventures of Grandpa (James Bolam) and his magical shrinking cap. Only his grandson, Jason (Jay Ruckley), knows about this magic cap, which shrinks Grandpa to a size small enough to fit into Jason's pocket. Just as often, however, Grandpa will surprise Jason by appearing unexpectedly in a certain location. Since his shrinking exploits have a habit of leading to chaos of one kind or another, Jason will spend a good deal of his time trying to sort out the mess, but he knows that his grandfather always means well.