Bosnia, 1995. Serb forces are encircling Sarajevo and defying UN peacekeeping troops, even shooting at patrolling US Navy fighters. International politics keep American hands tied. After Tuckson disobeys orders and attacks a Serb position, he is disciplined by being sent to a secret base, where other pilots from the US military - including Buck - are training for a mysterious mission in unmarked planes. But this Ghost Squadron is not the only unofficial fighting force in the area...