Seasons & episodes

S1 · E1The Secret Adversary, Part One 2015-07-26 · 60 min＋

Tommy and Tuppence have a chance encounter on a train with an agitated young woman who suddenly disappears and never returns to her seat.

S1 · E2The Secret Adversary, Part Two 2015-08-02 · 60 min＋

Tommy and Tuppence go undercover; he as a member of Brown's gang and she as a maid to a potential suspect.

S1 · E3The Secret Adversary, Part Three 2015-08-09 · 60 min＋

The Beresfords search for Jane Finn comes to a close, as they uncover the identity of Mr. Brown.

S1 · E4N or M? - Part One 2015-08-16 · 60 min＋

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.

S1 · E5N or M? - Part Two 2015-08-23 · 60 min＋

Tommy and Tuppence turn their attention to their fellow occupants of Sans Souci to find N.

S1 · E6N or M? - Part Three 2015-08-30 · 60 min＋

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.