From the publisher's website:

As in any spy story, the action in this game can be turbulent and confusing at times. The players search for top secret information on seven spies, hidden in a safe, which keeps being moved from place to place. Whenever an agent is able to crack the safe, more information becomes available. Each player is the chief of secret service in his country and sends his best agent in this race for information. The players should be careful to keep the identity (color) of their agents secret. To better conceal his agent's cover, each player can move all agents in the game. The player who has managed to move his agent marker the farthest at the end of the game, has collected the most information and wins!