Itch obtains a strange rock that could be a powerful new element, but trouble ensues when his home is robbed.

Flowerdew discovers the true power of the rock, and arranges to have it shipped to Switzerland for testing. Itch, with his friends, tries to steal the rock back.

Greencorp learns that the rock is missing, and Flowerdew resorts to desperate measures; Itch encounters Bikers and hears from Cake that the rock needs to be destroyed.

Itch, Lucy, Tim, and Jack head to the Mining Institute with the rock, but the Bikers arrive and try to get their hands on it.

The group are rescued and escape Seaburgh, but soon find themselves stranded when Flowerdew steals the rock.

Itch, Tim, and Lucy attempt to track the rock, but soon run into the Bikers; Jack teams up with Darcy to investigate Greencorp.