The Doctor, Romana, Adric and K9 encounter the enslaved time-sensitive Tharils, who lead them to a white void occupied only by the ruins of an old building and a spaceship - a dimension that might be the key to escaping E-Space.

Cast:Tom Baker, Lalla Ward, Matthew Waterhouse, John Leeson, Clifford Rose, Kenneth Cope,

Genre:Action, Adventure, Drama, Science Fiction, TV Movie,

country:United Kingdom,

Production:BBC,