Marco searches for the mastermind behind a murderous plot, while Prince Jingim weighs the risks of retaliation.

Marco finds his fate in the hands of Kublai yet again, while behind the walls of Xiangyang, Chancellor Sidao sets his sights on regaining power.

Marco gets an unpleasant surprise upon his return to Kublai's court. Kublai faces an impossibly difficult decision.

Marco's allegiance to Kublai is tested like never before. Mei Lin's bold move throws Ahmed's plans into chaos.

The day of the kurultai arrives, shaping Kublai's fate as khan. Ahmed makes his final stand, and Marco learns a terrible truth.