A collision in deep space sets the stage for mystery when the Starliner Empress crashes into the scientific vessel Hecate. The Doctor and Romana respond to assist in separating the two ships, only to discover that something sinister lurks beneath the surface of this seemingly straightforward rescue.
Directed by Alan Bromly. Written by Bob Baker. Starring Tom Baker, Lalla Ward, and Lewis Fiander.
Directed by Alan Bromly. Written by Bob Baker. Starring Tom Baker, Lalla Ward, and Lewis Fiander.