After Itch obtains an unusual rock, he's excited to discover it could be a powerful new element. But when his home is robbed, Itch realises it might be putting him and his family in danger.

Greencorp discover the rock's missing and Flowerdew goes to desperate measures to get it back. Itch has a run in with some of the Bikers, and Cake, sick with radiation poisoning, tells Itch the rock must be destroyed.