On their mission to explore the Mariana Trench at the very bottom of the ocean, the deepest and most inhospitable place on Earth, the crew of the deep sea vehicle Erebus make an unusual and startling discovery. A battered blue police box. As the Doctor, Romana and K9 join them on their journey, the submariners soon discover that the TARDIS is not the only unusual find lurking on the sea floor.
A princess in a coat of a thousand furs hides her identity from a king who falls in love with her.
This deeply human and complex drama alternates between 1950s Cape Town and contemporary London, weighing the price a gifted musician’s single-minded devotion to his art exacts upon his relationships with his family.