Derren uses his psychological techniques to get strangers to hand over their valuables to him; he uses his powers of persuasion to try and pick up some rather pretty ladies; he makes hundreds of people in a shopping mall behave in an unusual manner, and he goes shopping with a wallet full of blank paper.

Derren tries to detect when used car salesmen are lying to him about details on a car. He also uses subliminal persuasion to affect someone's dreams, he tests people's powers of observation, he sees if he can cash in on a losing ticket at a dog track, and he faces off with a kung fu master.

Derren tries his mind control techniques with exotic dancers, confuses commuters, goes to Venice to find a hidden treasure without a map, amazes some New York bankers and plays chess against nine grand masters.

Derren uses his techniques to expose a waitress' inner thoughts, zap the strength of a boxer, attempt to see with his fingers and predict a group's moves.

Oxford University is visited for a n experiment, and nine chess masters compete with the host, who also tries to make the sun vanish.