In the not too distant future a strange time warp opens over the Atlantic and out of it arrives a massive invasion force from the future to take over and destroy the Earth! The evil attackers are a race of bio mechanical machines that can manipulate space and time, called the Gader'el. They took over the future and plan to work back through the Earth's past conquering each time period and you must take your aircraft and make a stand for the survival of your species!

To play other amazingly great games from this system you might also get a kick out of playing more in the area of cool NEC PC Engine titles. If you are just searching for more awesomely popular flying titles then take a shot at more greats, such as Galaga, Mars Matrix and 1944 : The Loop Master.