Fledgling hero Jason goes in search of his father, only to find himself washed up on the shores of a mysterious land — a world of strange creatures, soothsaying oracles and palaces so large it is said they were built by giants. This is the city of Atlantis — but the newcomer soon realises he has chosen the wrong time to arrive when he becomes mixed up in a deadly ritual from which it seems there is no escape. (Radio Times)