Hana and Zhang both ask Nolan to recount the events of the conference. In a flashback, Nolan meets Shen Zhao, the woman he is accused of murdering, at the conference bar. While at a night club, she drugs him. Nolan is attacked by bar security, sustaining a stab wound. Following a car accident, he flees to his hotel, where he staples his wound to stop the bleeding. Back in the present, Amber is found dead in the crew area. While examining Amber's body, Nolan discovers that she sustained similar injuries to Steven. Zhang arrests Dr Ward as a suspect in Steven and Amber's murders. Hana updates Madeline, who fails to convince the Chinese trade minister to recall the plane. After Dr Ward disappears, Hana, Zhang and the crew conduct an extensive search of the passenger compartments. When the search is unsuccessful, Hana and Zhang convince a reluctant Chen to let them search the hold. In London, Jess secretly visits the office of General Pacific Medicine, the company that organised the conference Nolan and the other doctors attended. She finds unidentified government workers raiding the building and flees when discovered. Despite Hana's warnings, she visits the London residence of Sir George Chapman, the CEO of World Pacific Medicine.