Departure Episode 1.05 Grounded

AJ recovers from his injuries in hospital; Howard removes Kendra from the investigation and replaces her with Levi, citing the appearance of impropriety given AJ's involvement in the attack on Bartok. Kendra retrieves AJ's laptop, and views further incriminating footage of Janet and Ethan Moreau. She is attacked by the same assailant who attempted to murder AJ, but Dominic intervenes and the attacker escapes with the laptop.

Kendra and Dominic inform Howard of the link between Janet and Ethan; he tells them that the British Navy is planning a second attempt to retrieve the black boxes, although Dominic later confirms this is not true. Theo and Kendra meet with a university professor who tells them that Hoffman was convinced there were security flaws in the software controlling the BGA aircraft. AJ reveals that the trojan he used to record Janet and Ethan was unknowingly installed by Howard, linking him to the conspiracy.

Kendra, Dominic, Nadia and Theo put the official investigation to one side and work together, with the help of Bartok and his submersible, to retrieve the black boxes from the sea floor. As Nadia dives on the aircraft, Esmaili's body is discovered at the controls of BGA 716.