Jedikiah is recovered from space by Count Rabowski, who is already holding prisoner Peter, one of the Time Guardians. Jedikiah tricks Peter into transporting them to the 20th century so he can get his revenge on the Tomorrow People.
John and Carol return to the lab where they find Stephen has been returned safely but no-one has any memory of what has happened. Meanwhile, Steen returns to the pier to continue his investigation into Spidron.
The Tomorrow People and Steen must find a way to save the workers trapped in Spidron's collapsing mine workings. Then they must track down Spidron and Sandor and stop them escaping or the entire Earth will be destroyed.