Catherine aids Peter's off-the-books investigation into Foxglove while Noor stumbles upon an unexpected encounter. A hijacking spirals out of control.

Peter and Rose infiltrate a party at the Iranian ambassador's home, arousing Javad's suspicion. Tomás and Markus lock horns over the Foxglove plan.

Peter plays hardball to force Solomon to talk. Following a lead, Rose seeks answers from a Foxglove scientist — but finds herself in a lethal situation.

Desperate to locate Rose, Peter makes a game-changing deal with Jacob. Tomás discovers just how far Markus is willing to go in service to his father.

With time running out, Peter and Rose scramble to prevent a mass casualty event. Catherine floats an intriguing proposal.