You are a pilot. A time figher, fighting a battle against aliens that are attacking the world in the air on land and in the seas. A time-portal, secretly invented by the great Leonardo da Vinci, will send you into the future to help fight the battle in 5 different time periods. Beware of the weather. For it can be rough in the snow, lighting and rain. Tornados can blow your plane out of control forcing you to go to the direction of the wind.