Jack, Ben, Lachlan and Mimi discover a dead shark washed up on Hazard River. The shark has no fins. When another shark washes up without fins, the friends decide to investigate. Their attempt to uncover what is killing the sharks leads them to a marine park. They discover fishermen killing endangered grey nurse sharks and taking their fins for shark fin soup in Asia.

It's a boring wet day on Hazard River until Jack Wilde and his friends find a note on an abandoned boat. The message is damaged but they can all read the words HELP ME. The gang must find out who needs help and why. But as they get closer to the answer will they be the ones who need help?

It's New Year's Eve and Jack Wilde and his friends are getting ready for a night of fun at the local disco. But when a mad driver almost runs them over, things start to go badly wrong. Will New Year's Eve be the best night of their lives or the very worst? As the clock ticks towards midnight, only time will tell...