- "You can't change the world with words, Bill, unless you write those words in the evening news with blood."
- ―Tom Bowen
When federal air marshall Bill Marks boarded a non-stop flight from New York to London, Bowen sends him a text message telling Marks that he will kill someone on the plane every 20 minutes unless $150 dollars is transferred to a certain bank account. Busy with killing his traitorous partner in the bathroom, Marks is too late and a passenger is mysteriously murdered. Another 20 minutes pass and the captain is killed from poisoning. The other passengers, convinced that Marks is attempting to hijack the aircraft since the bank account is in his name and they witnessed a video of him treated passengers aggressively, has the plane landed in Iceland.
Marks has his friend Zack White trace the killer's call, and it is revealed the phone is in a passenger's pocket. The passenger states he's never seen the phone before, and is later killed the same way the captain was after the third 20 minute mark came around. Marks later finds a hole in the wall, deducting it to be the killer's former position as it is where he sniped the captain and passenger with a pair of fatal darts. The killer then sends a message to the TSA that Marks is a homicidal terrorist about to detonate the plane with a bomb. Seeing how there is no way to get rid of the newly discovered bomb, Marks throws the explosive in the back of the plane and smothers it with items to weaken the blast, convincing the passengers to work with him. Marks re-watches the blackmail video of him insulting the passengers and notices how a certain man, Tom Bowen, is slipping a phone into the deceased passenger's pocket from before. Realizing that Bowen is the culprit, Marks find and engages him in a fight, and by then it was revealed that Bowen and White were soldiers appalled by the lack of security at U.S. airports before 9/11 which resulted in the death of Bowen's father, hoping that framing Marks as a terrorist will lead to drastically increased security. Bowen is prepared to die with the plane and shoots White, who expected to get off the plane with the money. Following another fight, Marks shoots Bowen in the head. White recovers and attacks Marks with a knife, but White dies in the explosion as Marks retreats to the front of the plane. The plane ultimately lands rough with no casualties other than White and Marks continues his normal life.