Episode 20

Comedic royalty and fresh new faces on the stand-up scene take to the stage of the legendary London venue.

Household names endure some of the harshest, most grueling challenges from the playbook of the actual Special Forces selection process. There are no votes, and no eliminations – just survival. These celebrities, who are so used to being in the spotlight, quickly learn the meaning of "no guts, no glory" – and no glam.

The Agency follows Martian, 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.

NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives.

Mark Scout leads a team at Lumon Industries, whose employees have undergone a severance procedure, which surgically divides their memories between their work and personal lives. This daring experiment in "work-life balance" is called into question as Mark finds himself at the center of an unraveling mystery that will force him to confront the true nature of his work… and of himself.