All Seasons

Season 1

• S01E01 The Villa St.Yves

  • December 4, 1958
  • BBC One

  Unthank travels to France to investigate a currency racket.

• S01E02 The Latin Triangle

  • December 11, 1958
  • BBC One

• S01E03 The Missing Crucifix

  • December 18, 1958
  • BBC One

Season 2

• S02E01 The Girl From Paris

  • November 12, 1959
  • BBC One

• S02E02 A Shield For Caroline

  • November 19, 1959
  • BBC One

• S02E03 The Flight Captain (1)

  • November 26, 1959
  • BBC One

• S02E04 The Flight Captain (2)

  • December 3, 1959
  • BBC One

• S02E05 The Battle For Diana

  • December 10, 1959
  • BBC One

• S02E06 The Director's Wife

  • December 17, 1959
  • BBC One