Supernatural: Mystery Spot

Supernatural does Groundhog Day - but with the show's typical dark spin.

Sam and Dean come to small town to investigate the disappearance of a scientist who was visiting the local tourist trap: The Mystery Spot.

But suddenly their detective work becomes complicated when Sam finds himself stuck in a time loop, with every day ending with Dean being killed in a different manner - no matter what Sam does to try and prevent it.

As a big comic book fan I always enjoy returning villains and while the perpetrator of Sam's increasing discomfort wasn't one of my favourite antagonists from the early years of the show it still makes for great storytelling.

If you are a die-hard fan of Supernatural who religiously reads, and memorizes, the opening credits of every episode, the twist in this story is possibly given away with the name of one of the actors. Luckily, I'm too lazy to be that observant!

Kudos must go to Jared Padalecki (Sam), in particular, in this episode as he carries all the serious emotional scenes with great conviction, while the death-prone Dean (Jensen Ackles) is more comic relief.

Given its light-hearted inspiration, Mystery Spot is a surprisingly dark story with Sam learning (maybe) a very harsh lesson about his relationship with his brother.