A U.S. Marshal is tasked with escorting a government witness to trial after he’s accused of involvement with a notorious mob boss. However, when they board a plane, they soon discover that the pilot is secretly a hitman hired to kill the informant. After a tense confrontation that leaves the hitman subdued, the Marshal and the witness must work together to survive. But their troubles don’t end there—soon they realize that there are others on board and on the ground determined to eliminate them. Stranded in the air and with enemies closing in, they must fight to stay alive long enough to reach safety.