Old Tom accidentally breaks Angela's favourite vacuum cleaner, so he and Lucy go to a Home Appliance Expo, to buy her a new one. There they discover that a spaghetti-eating competition is offering, as first prize, a new vacuum cleaner, so Old Tom enters the competition. However, just before it begins, Old Tom sees a baby in danger in a runaway pram, and he runs off to save it. Meanwhile, Angela, who is also at the Expo, mistakenly enters the competition, thinking it's a free lunch… and wins! Old Tom is a hero for saving the baby, and Angela gets her new vacuum cleaner, after all.

A TV producer sees Old Tom causing mayhem at a shopping centre and, thinking Old Tom is a comic genius, gives him his own TV show. Soon Old Tom is a TV star, and everybody who previously disliked him know wants to be his friend - even Lavinia. When Old Tom is mobbed by fans at the Department Store, Lavinia rescues him and takes him to a party she is throwing in his honour. Old Tom enjoys this adulation until he realises that his old friends - Angela and Lucy - are being left out. Old Tom turns his back on his new fame and new friends, and goes back to being himself.

In the final episode, Old Tom seems to be back at square one - rejected by much of the community. On a trip to the observatory, Billy causes trouble but Old Tom gets the blame, so he runs off and hides in his old rocket ship. When Billy accidentally unleashes an asteroid which threatens to destroy the world, Old Tom takes off in the rocket - with Lucy and Angela - and manages to avert the catastrophe at the last minute. Old Tom lands the rocket back on Earth, in the middle of Lavinia's party, where he is finally appreciated for who he is - wild, free-spirited and occasionally berserk - but always a hero.