In The Assassin, Derren asks - is it possible to hypnotise someone to carry out an assassination? The imprisoned killer of Robert Kennedy has claimed that the CIA programmed him to murder the senator. Are such claims remotely plausible, or just the stuff of conspiracy theorists? Derren looks for a profoundly suggestible member of the public, and secretly trains him to assassinate Stephen Fry.

In The Gameshow, Derren hosts a fake game show designed to see how being anonymous and part of a crowd affects our sense of right and wrong. Filmed just before the British riots took place, this show offers a dark insight into mob mentality. An unwitting member of the public, out on a Friday night, must suffer the consequences of decisions made by a studio audience watching his every move..

In The Guilt Trip, an unsuspecting 'nice guy' is invited to take part in what purports to be a seminar in an old country hotel. He has no idea that everyone he meets is an actor, and that he is taking part in a TV show designed to see if he can be made to admit to a murder he did not commit. Even his hero, Tim Minchin, is in on the game. A weekend from hell awaits him....

In The Secret of Luck, an entire town is the subject of Derren's experiment. With the help of journalist Dawn Porter, a rumour is spread in a remote town that a local statue of a dog brings good luck. As the story takes hold amongst the townsfolk, we see what really separates lucky from unlucky people and how we can create good luck for ourselves. The journey culminates in one man betting his entire life-savings on the roll of a dice.