ITV3's weirdest scene: Dirty Den, Mr Derek, Steve Winwood and the North York Moors Railway

Villains try to blow up a train they believe is carrying the prime minister, only to be foiled by Leslie Grantham. He is revealed to be a Special Branch office and not the antiques thief the locals have taken him for.

All this happens to the strains of Dear Mr Fantasy by Traffic.

And you wonder why I like ITV3.