Grandpa In My Pocket - Series 1 - Nothing Stops Grandpa

Comedy drama featuring a grandpa with a magical Shrinking Cap that only his grandson Jason knows about. The Mason family are going on a bike ride around Sunnysands. Grandpa wants to come too, so he shrinks and hides in Jason's backpack. When they get to the beach, Jason tries to fly his new kite but there is no wind. Can Grandpa help?