X-Trem Limit is a famous British TV show. The concept of the show is to take a random person and make him surpass his limits. The guest will have to undergo several X-treme sport tests. While organizing a base jump, the three main characters get stuck in a very old medieval castle in south of France where a psychopath dressed as a knight templar from the 12th century is chasing them. Kate, David and Tim will have to surpass their limits in order to survive this nightmare.