Writer(s): Mervyn Haisman | Henry Lincoln

Director(s): Morris Barry

Producer(s): Peter Bryant

Episodes: 5

Writer(s): Peter Ling | Derrick Sherwin

Director(s): David Maloney

Producer(s): Peter Bryant

Episodes: 5

Writer(s): Derrick Sherwin | Kit Pedler

Director(s): Douglas Camfield

Producer(s): Peter Bryant

Episodes: 8 (1 and 4 missing)

Writer(s): Robert Holmes

Director(s): David Maloney

Producer(s): Peter Bryant

Episodes: 4

Writer(s): Brian Hayles | Terrance Dicks

Director(s): Michael Ferguson

Producer(s): Peter Bryant

Episodes: 6

Writer(s): Robert Holmes

Director(s): Michael Hart

Producer(s): Peter Bryant

Episodes: 6 (1 and 3-6 missing)

Writer(s): Terrance Dicks | Malcolm Hulke

Director(s): David Maloney

Producer(s): Derrick Sherwin

Episodes: 10