Lanzamiento: Mar 01, 1975
Duración: 50 minutos
Género: Ciencia ficción, Drama, Aventura
Estrellas: Tom Baker, Elisabeth Sladen, Ian Marter, Kevin Lindsay, Donald Douglas, Glyn Jones
Crew: Dave Martin (Writer), Bob Baker (Writer), Rodney Bennett (Director), Robert Holmes (Script Editor), Philip Hinchcliffe (Producer), Dudley Simpson (Original Music Composer)