When a small neighborhood starts practicing air raid drills for World War II, a new German couple down the block stirs up trouble for themselves when they get into a spat with their neighbors.

Two men have been locked underground somewhere in Utah, Montana, or Idaho with instructions to wait for a monitor's signal then each turn a key in a lock simultaneously to fire a "bird" at an unknown target city. They also have guns and instructions to shoot the other if the other behaves strangely.

A boy and his love interest face strict parents in the face of their burning passion for each other.