Nora and James were once the dream team at a top New York ad agency, but now they're locked in a frosty competition for the sweetest client of all: a small-town dairy farm that churns out the most delectable ice cream in the country.

After takeoff, flight attendant Nora gets a call from a stranger blackmailing her into poisoning a passenger in exchange for her family. One way or another, someone is going to die during this flight as they get closer to their destination.