As Hardwick helps Danny and Lexi try to outmaneuver the Brotherhood, Danny learns shocking revelations that shatter everything he thought he knew about his past.

The search for Kate Reece takes Danny and Lexi to Vietnam, where they reunite with none other than Aiden Shaw. Lexi's fighting skills are put to the test as the team infiltrates the dangerous Black Lotus - an underground fight club - where they learn about a vicious new terrorist.

Realizing they've taken the Khan's bait - and putting the lives of millions in jeopardy - Danny and Lexi come face-to-face with the Khan in one final battle above Hong Kong.