Dalaga pushes his luck with Richardson. Danny, in Iran, learns grandmother is dead. Blair follows the money. Bosko and Henry talk game plans in the Crisis Room as Owen takes a deep breath. Poppy treats Martian to a discourse on Kant.
Martian is a covert CIA agent ordered to abandon his undercover life and return to London Station. When the love he left behind reappears, romance reignites. His career, his real identity and his mission are pitted against his heart; hurling them both into a deadly game of international intrigue and espionage.