Mr Mack's inventing career has got off to a bad start \- he's been arrested! It's up to Jimmy, Robbie, Kayla and Rover the wonder-dog to: - Rescue Mr Mack from prison - Avoid the orphan catchers - Save the world from an army of stroppy slugs Will they succeed? There's only one way to find out\.
Rudolph the red-nosed reindeer only works one night a year - but, unfortunately, he's chosen Christmas Eve to take a sickie. When your star sleigh-puller is stable-ridden with the flu, what do you do? You call Rover. Join, Rover, Robbie, Jimmy and Kayla for a fantastic race against time.
Mr Mack's dog Rover sells is own poo to the gigglers - small creatures who take revenge on any adult who treats children unfairly by making the unsuspecting adults step in poo. When the gigglers set out to exact punishment on Mr Mack, Rover knows he doesn't deserve it, and the race is on to get to him before he takes that fatal step.