From game inlay From the U.S.A.F. Air Defence Head Quarters is flashed the message 'aIR DEFENCE RED.... hostile unidentified flying objects detected approaching Nre Youk'. The only fighter capable of tackling the Alien crafts is the experimental F21 Condor of whic there are only four. As a Condor Flyer your priority mission is the destroy the UFO Force threatening the 'Big Apple'. If you are succesful in this highly dangerous sortie, you will be required to transit the hypersonic air corrodot to the next theatre of Alien operations.