On her final combat mission across the rugged mountains of Afghanistan, Royal Air Force fighter pilot On her final combat mission across the rugged mountains of Afghanistan, Royal Air Force fighter pilot Lt. Kate Sinclair’s jet is shot down over one of the most dangerous rebel strongholds. When insurgents come after her at the crash site, she finds refuge in a long since abandoned underground bunker. After tracking Sinclair into the depths of the bunker, the insurgents accidentall...