London police officer DC Hana Li is escorting Dr Matthew Nolan back to Beijing where he has been accused of a crime. However, on board flight 357, she finds herself embroiled in an escalating conspiracy and a growing number of murders.
Episode 1
A British man crashes his car in Beijing and upon his return, he's accused of murder. After an incident on board, the officer escorting him begins to suspect foul play.
Episode 2
As Nolan fears for his life, tensions rise on board; Hana is instructed to investigate by the head of MI5 Delaney; Hana's sister starts digging into the events occurring on NCA 357.
Episode 3
Nolan recounts the events in Beijing; Hana continues to investigate the events on board; Jess's findings lead her to a mysterious international medical company.
Episode 4
Jess fears for her life when she becomes a target for both MI5 and a deadly assassin; Delaney uncovers a shocking truth that changes her understanding of events that night.
Episode 5
The truth about events on board is revealed, forcing Hana to take drastic action; Tennant is put in charge of Delaney's operation, forcing Delaney to break protocol.
Episode 6
The events of the fateful night in Beijing are revealed. Hana and Delaney hatch a daring plan, risking their lives to bring those responsible for the conspiracy to justice.
