Writer(s): Bob Baker | Dave Martin

Director(s): Lennie Mayne

Producer(s): Barry Letts

Episodes: 4

Writer(s): Robert Holmes

Director(s): Barry Letts

Producer(s): Barry Letts

Episodes: 4

Writer(s): Malcolm Hulke

Director(s): Paul Bernard

Producer(s): Barry Letts

Episodes: 6

Writer(s): Terry Nation

Director(s): David Maloney

Producer(s): Barry Letts

Episodes: 6

Writer(s): Robert Sloman

Director(s): Michael Briant

Producer(s): Paul Bernard

Episodes: 6