When an armed man storms her late-night flight to Moscow, former military pilot Sylvie finds herself pulled into the cockpit to help.

Mechanic Jakub clashes with the others about what to do next. A Wi-Fi signal brings troubling new intel on the disaster — and on some of the passengers.

As the group deals with a series of mechanical crises, Terenzio challenges Mathieu's authority, and Horst makes contact with another plane.

Rik organizes a hasty trial to decide Ayaz's fate, Terenzio reveals rumors of a NATO refuge, and Sylvie begins to worry about Mathieu's state of mind.

The mission to NATO headquarters takes a dramatic turn. Laura and Horst tend to a medical emergency. Jakub and Osman race to solve the fuel problem.

Emotions run high as the group makes one last desperate bid to reach safety before dawn breaks.