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.
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 is out of a job and sets his mind to inventions - whilst unbeknownst to him Mrs Mack decides to walk around the world without telling anyone. Unfortunately Mr Mack's inventions get him into trouble when he's arrested for inadvertently holding up a bank, so it's up to his children and their amazing dog, Rover, to track down Mrs Mack and save the day.