01. The Secret Adversary, Part One
Tommy and Tuppence have a chance encounter on a train with an agitated young woman who suddenly disappears and never returns to her seat.
1h 0min
July 26, 2015
02. The Secret Adversary, Part Two
Tommy and Tuppence go undercover; he as a member of Brown's gang and she as a maid to a potential suspect.
1h 0min
August 2, 2015
03. The Secret Adversary, Part Three
The Beresfords search for Jane Finn comes to a close, as they uncover the identity of Mr. Brown.
1h 0min
August 9, 2015
04. N or M? - Part One
Tommy is sent on a secret mission to discover the identity of Soviet spy staying at a seaside guest-house; Tuppence refuses to be left behind.
1h 0min
August 16, 2015
05. N or M? - Part Two
Tommy and Tuppence turn their attention to their fellow occupants of Sans Souci to find N.
1h 0min
August 23, 2015
06. N or M? - Part Three
Tommy has finally found the missing scientist, but they're both being held against their will by M, and still none the wiser as to who N is.
1h 0min
August 30, 2015