Station Officer Steele takes Norman Price and Mandy Flood pot-holing, the rest of the crew look forward to a restful afternoon. However, the peace is soon shattered when Station Officer Steele finds himself in a tight spot and the only way out is blocked.

Fireman Trevor Evans tells the children that there's no such thing as little green men from outer space, but Norman Price is determined to prove him wrong. Fireman Sam and Cridlington come to stop him in his antics.