Rebecca, Marc and Colette attend a school for young scientists. They discover scientists are harnessing Joey's psychic abilities in experiments to develop weapons powered by energy from the mind.

On holiday in Cornwall, the gang discover an alien city under the sea. A mad millionaire, obsessed with finding the elixir to life, follows them and drinks from a cup he believes to be the Holy Grail - but he falls into suspended animation, as this is really an alien prison.

Marc, Rebecca, Joey and Colette are on a study trip in Culloden, Scotland, where there is soon to be a re-enactment of the battle fought there centuries before. But the re-enactment causes a time fissure, and deadly psychic forces are unleashed, threatening to rewrite the course of history.

It is the Christmas holidays. Marc, Joey, Rebecca and Colette are staying on the south coast. The local power station is experiencing some inexplicable power losses, and there is a series of grisly attacks in the East End. The culprit is an alien creature who feeds on human blood and nuclear power.

Morgan is a new student at the Institute. She is American, gorgeous and has Marc under her thumb. This seems harmless until he becomes involved in a cult, his personality changes, the other students start behaving violently and the chemistry labs are under guard. Is this all due to the cult?