A computer game simulating the summer of 1940 Battle of Britain, published in PSS's Wargame Series.
The player controls RAF fighter squadrons, assigning missions, patrol routes and objectives to defend. The player must also monitor squadron fuel levels, air bases state of repair, and radar coverage. Battles are resolved either automatically by the computer or by playing (optional) arcade sequences (aerial dogfight, or shooting down german planes with a flak battery).
The game includes three modes: training (one day of fighting against a weak enemy), blitzkrieg (also one day, against a tougher opponent), and campaign (30 days of fighting).