Martian buys time with a crystal ball bluff to Langley; Blair and Owen hunt out a White Rabbit; Osman raises the stakes; Henry tasks Dr. Blake with an urgent assessment; Danny crosses the Rubicon; with a green light from Bosko, a trap is sprung.
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.