Angela bakes a cake to enter in the Home Appliance Show Bake-Off, but Old Tom eats it by mistake. Feeling guilty, Old Tom decides to bake a new cake to replace it. With Lucy's help, he runs around the expo gathering the ingredients from the food pavilions, and then mixes them all together in one of the expo's spinning rides. Old Tom and Lucy use an appliance exhibit to cook the cake and then race, with Angela, to the Bake-Off - where the cake wins first prize!

It's April Fools Day and Old Tom and Lucy play a trick on Billy, who tries to get his own back. Instead, he meets Angela and tricks her into believing that a flying saucer is about to land in the park. Alarmed, Angela races through the town warning everybody. Meanwhile, Billy finds Old Tom and Lucy at a pizza parlour and manages to get them thrown out. As they leave, the big, pizza-shaped signs falls off the building and collects Old Tom as it starts to roll down hill. Meanwhile, at the park, Billy is about to tell Angela that he tricked her about the flying saucer, when the runaway pizza sign bounces off a rock and flies overhead. Everyone thinks it's a flying saucer, and Billy's trick backfires on him.

When an outing is cancelled because of rain, Old Tom decides to invent a device that can change the weather. Adapting a TV remote control, he almost succeeds. At first, he creates an indoor snow storm. Then, he makes an electrical storm. When Lavinia gets hit by a lightning bolt, Angela asks Old Tom to stop his experiments. However, she tries to turn on the TV with the remote and accidentally starts a mini-tornado, which lifts the house off the ground into the storm clouds. Old Tom has a brain wave and switches on all the vacuum cleaners, which suck up the clouds to create a sunny day. Success at last!