It is October 1962. You're President John F. Kennedy. You find out there are nuclear weapons in Cuba. For now, you have a tenuous blockade around Cuba. Your advisers keep telling you to use nuclear weapons to resolve the crisis even though you know overwhelming force does not necessarily mean surrender.  Neither Khrushchev nor Castro seems to be offering you a good way out.

You take a long walk around the White House to gather your thoughts. You notice a lock-box with four combinations. It's Ike's "In Case of Emergency" lock-box. 

Break open Ike's lock-box in 45 minutes or the Soviets will attack the blockade ships and World War III will start!