John, Liz, Stephen and Tyso return to Earth to see if any more Tomorrow People have broken out in their absence. They sense the presence of another telepath, Mike Bell, and decide to leave him to break out in his own time. Unfortunately, his abilities have already attracted the attention of some criminals.

Lord Dunning takes Mike's family prisoner in order to force him to use his powers in his service. Meanwhile, John, Liz and Stephen attempt to discover his whereabouts by interrogating Slow and Two Tone.

John, Liz and Stephen are able to secure Mike's release but are unable to prosecute Dunning without revealing the Tomorrow People's existence. However, Mike goes to Dunning and offers him a partnership.

A spaceship is detected near Earth. John and Stephen jaunt aboard to collect the pilot, Kwaan, who has been injured. When Mike goes up to the ship on his own, it results in several of the Tomorrow People being trapped on board.

Timus arrives at the lab and he and Tyso try to find a way to rescue the other Tomorrow People and their allies, who have been abandoned on the scout ship as it is drawn into the hole in space.

The scout ship manages to emerge from the tunnel back into normal space. Unfortunately, the ship then comes under attack from Vektaan, who is determined to destroy them.