Whilst Starkey and Jorjie are trying to escape the police, they take refuge in a large detached house, now the residence of reclusive scientist, Professor Gryffen. They come across two Jixen warriors and a robot dog, K-9 Mark I. After the ensuing battle with the Jixen, K-9 regenerates...

Having been "tagged" by Jixen slime, Starkey is in hiding from The Department and from the Jixen warrior who survived K9’s blast. Jorjie tells Starkey that the Department is imprisoning Aliens, and K9 flies off to investigate. Jorjies’s mother turns out to be Department inspector June Turner, and there is a confrontation as the youngsters and K9 try to help release the innocent Aliens. Starkey confronts the Jixen with dire consequences.