When poisoned fish wash onto the shore and there's an explosion in the bay, Itch and his friends wonder whether Greencorp are to blame.

Itch and his family move to a secret mansion under the watch of Australian Intelligence and Itch tries to uncover the source of the water pollution.

Itch, Darcy and Lucy try to stop the Mayor from reopening the beach, while Tim throws a party to win his friends back, and together they hatch a plan to investigate Greencorp.

Itch and Darcy take a trip to the local Country Club to get information, while Lucy and Tim visit Roshanna to try to find out about Greencorp plans.

In an effort to stall the grand beach reopening, Itch and Jack try to prove the water is toxic, while Tim and Chloe work to try and access Lannister's hard drive for more clues.

Itch and the gang go on separate missions following the information on Lannister's laptop and make an unusual discovery, while Tim tries to track down Roshanna following her escape.

Itch, Tim and Lucy come face to face with an old enemy and uncover Greencorp's evil plan which threatens disaster for Seaburgh - and the entire planet.

Itch, Tim and Lucy find themselves trapped at the hands of Greencorp, while Darcy and Jack race against time to get the only thing that can stop their evil plan.

When Greencorp's plan is put into action, the entire town of Seaburgh is at risk of major devastation, leaving Itch and the gang to save it before it's too late.