Vydáno: Mar 01, 1975
Runtime: 50 minut
Žánr: Vědeckofantastický, Drama, Dobrodružný
Hvězdy: Tom Baker, Elisabeth Sladen, Ian Marter, Kevin Lindsay, Donald Douglas, Glyn Jones
Crew: Rodney Bennett (Director), Bob Baker (Writer), Dave Martin (Writer), Robert Holmes (Script Editor), Philip Hinchcliffe (Producer), Dudley Simpson (Original Music Composer)