The Gathering was a live stage show performed in a secret location (hidden from the audience). The audience was hand picked by Brown and included psychologists, college students, celebrities, psychics, taxi drivers, and magicians.
In The System, Derren Brown amazes us by being able to correctly predict the winner of horse races every time. Derren persuades a woman to place increasingly large bets with her own savings based on his picks.
A member of the public is given a second chance at life when mentalist Derren Brown makes him realize how important life is by tricking him into believing that a meteor has hit the earth and is now populated by zombies.
In the first programme, Derren sets up a fake pharmaceutical company which claims to have developed a drug named 'Rumyodin', with the ability to inhibit fear. In the second, Derren looks at the psychology of religious belief.