Your mission, Agent 4125, is to foil a horrible plot. From an underground laboratory, Elvin, the scientist, is holding the world hostage under the threat of nuclear annihilation. You must penetrate his stronghold, avoid his human-seeking robots and find the pieces of the security code. Somersault over the robots or use a precious snooze code to deactivate them long enough to search each room. Use the Agency's computer to unscramble the passwords from the code pieces, or try to solve them yourself. You've got to reach Elvin's control center, but you'd better beware... this mission is stamped IMPOSSIBLE!