A faulty television remote rewinds the Spuds back to the olden days, where everything is black and white, everyone is a puppet and there is a giant biscuit on the rampage.
It is the hottest day of the year and Gran's naughty knitting crew have dressed the whole town in their woolly wares. When their finest work, a giant sock puppet comes to life, Dave must stop it from eating them all.
George takes Anna and Dave on a trip to a local attraction, Lawnmower Land, but a run-in with the latest technology in lawn-mowing gives them more than they baa-gained for.
George shaves off his beard in a mistaken attempt to impress Betty, and when the beard runs away it is up to Dave to coax it back for the sake of his family.
The Spuds set off the Bobby Dazzler firework that Gran has been saving, but when it hits the moon, breaking it into several pieces, the whole town goes wonky and Dave must somehow put the broken bits back together.