Fireman Sam has double the challenge in his latest exciting adventures! James and Sarah are always competing with each other, but when a tree in the forest is hit by lightning, will they stop in time to realise the dangers in front of them? Fortunately for the troublesome twosome, the Hero Next Door is on hand, with a little help from Radar, to sniff out the twins and guide them back to safety.
Episodes: Danger by the Double; When Fools Rush In; Pontypandy Extreme; Stuck in the Muck; Double Trouble; and Model Plane.