Not In Jest
Episode: 4x01 | Airdate: Apr 29, 1970
Episodes
A Thing Like Death
Episode: 4x02 | Airdate: May 6, 1970
Package Deal
Episode: 4x03 | Airdate: May 13, 1970
Spartika
Episode: 4x04 | Airdate: May 20, 1970
Merely Players
Episode: 4x05 | Airdate: May 27, 1970
Agincourt
Episode: 4x06 | Airdate: Jun 3, 1970
Microdot
Episode: 4x07 | Airdate: Jun 10, 1970
Kythera!
Episode: 4x08 | Airdate: Jun 17, 1970
The Dictator
Episode: 4x09 | Airdate: Jun 24, 1970
Petrov
Episode: 4x10 | Airdate: Jul 1, 1970
Decoy
Episode: 4x11 | Airdate: Jul 8, 1970
Firing Squad
Episode: 4x12 | Airdate: Jul 15, 1970
Explosion
Episode: 4x13 | Airdate: Jul 22, 1970