Itch obtains an unusual rock and discovers it could be a new element. However, when everyone at school gets sick, Itch wonders if the rock is to blame.

Itch is unimpressed by suave new boy Tim, but has bigger fish to fry when Flowerdew arranges to have the rock sent away for testing. Itch must get the rock back before it's too late.

Itch discovers he is being followed by some scary looking biker dudes. Tim helps Itch out and Cake tells Itch the rock must be destroyed.

Itch decides to get rid of the rock but is instead waylaid at the school rock concert, where Chloe is playing.

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.