International espionage, covert operations, and messages delivered on exploding tape recorders: all in a day's work for the secret agents of the Impossible Mission Force (IMF). Whether they're fighting dictators, evil organisations, or crime lords, this crack team of spies and specialists are perfectly equipped to handle any mission assigned to them by the unseen 'Secretary'. The series has enjoyed a renaissance since the mid '90s with the blockbuster film franchise starring Tom Cruise. This collection contains every episode from the fourth series of the popular '60s TV show.