Season 1

E1. The Secret Adversary, Part One

Jul 26, 2015 · 60m

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

E2. The Secret Adversary, Part Two

Aug 2, 2015 · 60m

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

E3. The Secret Adversary, Part Three

Aug 9, 2015 · 60m

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

E4. N or M? - Part One

Aug 16, 2015 · 60m

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.

E5. N or M? - Part Two

Aug 23, 2015 · 60m

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

E6. N or M? - Part Three

Aug 30, 2015 · 60m

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.