Angel is called to join an intelligence taskforce to track down the activities of Hyperons, travellers from a parallel Universe.
Meanwhile, her colleague Barbara tries to gain the trust of Jonthar, a Tharelian immigrant.
Angel travels to the Isle of Man to visit Alice Morland, her sick mother. In a flashback, her father Nikol meets Alice in the USSR.
Angel meets Maria Slavcic, a psychic who gives her information about her father. She teleports alone to Tharelia.