The newly regenerated Doctor is suddenly attacked by a very powerful psychic energy. His investigation leads to the Andromeda base in New Mexico where he finds a complex of scientists being taken over and a strange meteor seemingly at the centre of it.
The Doctor and Mark attempt to solve the mystery of a strange asteroid that New Agers believe heralds a new era for Mankind. But that era comes with strange voices, telekinetic powers, and death for those who refuse to believe.
Even as the Doctor is able to enlist the assistance of Prof. Andrew Travers of the university, even his traveling companion, Mark Newman, is finding himself drawn under the power of Akar of the Hakari.