On Fireman Sam's day off the crew are inundated with the Jones' emergencies. Firefighter Penny Morris has caught a cold, but she still tries to perform her firefighter duties. However, when the Joneses get stuck on Charlie's boat, Penny's illness takes hold while she is out on Neptune alone, and Sam has to come to the rescue.

With Fireman Sam out on an emergency, Trevor Evans leads some young explorers on a nature walk to the Mountain Rescue Centre, but is he up to it? He gets himself stuck and Fireman Sam comes to the rescue.