Masked attackers leave a marking at the Vatican indicating a quest for The Soul of Genghis Khah. Reece is dead. The adventure continues.

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.

A visit with Simon in prison yields new information on the Spirit Banner's last whereabouts, sending the team to Russia.

Danny and Lexi join forces with Levchenko's gang as they journey to Mongolia.

In search of the Spirit Banner, Simon attempts to make a deal, unaware that Lexi, Danny and Shaw are on his tail. What they uncover leads them to Hong Kong while Danny becomes increasingly concerned with Violet's control over Lexi.

Danny, Lexi and Violet travel across a dangerous chemical wasteland in Kazakhstan to an abandoned bio-weapons facility. Meanwhile, Chuck begins his investigation about how the Vatican and the Spirit Banner are connected.

The pieces of the Kahn's end-game fall into place as Danny and Lexi must put their differences aside in order to stop the Kahn and Simon before it's too late.

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