50/10/11      Woman of Mystery --- (LA broadcast as "Under Cover Agent" / Dallas broadcast as "Don Barclay"
  50/10/18      Honolulu Death Trap --- (LA broadcast as "American Agent" / Dallas broadcast as "Don Barclay" 
  50/10/25      --- (Dallas broadcast as "Don Barclay" thru 50/11/22, then "American Agent"
* 50/11/01      The Papers and the Cast --- NY PREMIERE as "American Agent"
  50/11/08      Shanghai Crossing
  50/11/15      The Double-Switch Trick
  50/11/22      Yokohama Operation
  50/11/29      The Black Dragon --- (1st Chicago broadcast as "American Agent")
  50/12/06      Tiger Bait
  50/12/13      Paris Calling
  50/12/20      The Red Danube
  50/12/27      Street of the Jade Mongers
  51/01/03      The Iranian Files
  51/01/10      Death Mask
  51/01/17      The Georgetown Robbery
  51/01/24      The Brussels Underground
  51/01/31      Dead Man's Diary
  51/02/07      Destination Algiers
  51/02/14      Channel Rendezvous
  51/02/21      Treason's Ally
  51/02/28      See Douaumont and Die
  51/03/07      Le Bedouina --- (danger in streets of Cairo)
  51/03/14      The Surgeon and the Sword
  51/03/21      Storm in Algiers
  51/03/28      Mutiny on the Madame X
  51/04/04      Turkish Trophy
  51/04/11      Climax in Istanbul
  51/04/18      Death on the Campus
  51/04/25      The Underground Trail
  51/05/02      The House on the Hill
  51/05/09      The Man with the Camera Mind
  51/05/16      She Danced for Stalin
  51/05/23      The Siamese Twin Plot
  51/05/30      Idol of Death
  51/06/06      The Red Impersonation
  51/06/13      Hong Kong Film Search
  51/06/20      Packet C-1
  51/06/27      Mutiny on the Madame X
  51/07/04      The Traitor
  51/07/07       Bedouins (repeat of 51/02/28)
  51/07/11      Monsoon
  51/07/18      Singapore Fling
  51/07/25      The Scourge
  51/08/01      Jungle Rendezvous
  51/08/08      Barclay, Target
  51/08/15      Night in the Jungle
  51/08/22      Shanghai Explosion
  51/08/29      Out of the Fog
  51/09/05      Round Trip to Macao
  51/09/12      Flight of the High Lama
  51/09/19      The Shanghai Cigarette Case
  51/09/26      Tokyo Dinner Date --- (LAST EPISODE)