1x1 - The Last Man

January 12, 1966

Allied Intelligence must convince the Germans that March is loyal to them: information has leaked out about a new Nazi super-weapon, and March is the only agent who has access to the invention.

1x2 - Target, David March

January 19, 1966

1x3 - The Fortress Below (1)

January 26, 1966

1x4 - The Weapon Within (2)

February 2, 1966

1x5 - Traitor's Blood

February 9, 1966

1x6 - Agent of the East

February 16, 1966

1x7 - Sacrifice!

February 23, 1966

1x8 - The Secret War

March 2, 1966

1x9 - Invasion by the Stars

March 9, 1966

1x11 - Jet Trail

April 6, 1966

1x12 - How to Kill a Toy Soldier

April 13, 1966

1x13 - The Deserters

April 20, 1966

1x14 - The Other Fuhrer

April 27, 1966

1x15 - The Key to the Code

May 4, 1966

1x16 - Field of Dishonor

May 11, 1966

1x17 - The Friendly Enemy

May 18, 1966