Bella is as sick as a parrot when a bird's nest falls down the chimney and into her new oven - thanks to Norman Price's antics. Mandy and Norman gathers "tomatoes" from Sam's garden not realising they are chilli peppers, and Norman tries one. Sam comes to the rescue. Meanwhile as Norman and Mandy are having pizza making lessons, Bella's chimney catches fire because of the bird's nest stuck there.

Norman Price has taken the school mouse home to look after and manages to make twenty-five of his mum's toilet rolls disappear. Station Officer Steele has trouble with golf balls and hurts his foot, and Fireman Sam has fun with a new invention. The mouse goes on the run and ends up stuck in Bella's chimney. Fireman Sam comes to the rescue.