A lack of water sends Max and Glenn out into the wilderness to hunt sapphires; Anthony and Jodie Mifsud take a costly wrong turn.

Todd and Brianna struggle mixing parenthood and sapphire hunting; Old Timers Ray and Paul might be digging in the wrong spot while Max and Glenn bring in the drillers.

Rowan Richardson drills up a lot more than he bargained for; Anthony and Jodie Mifsud desperately try to join tunnels while Old Timers.

The Mifsuds hope their two sons will make the difference, but it might cost them a sapphire; Ray and Paul come unstuck with a 40 tonne drill.

Storms hit the Gemfields and Max fights his way to the lease, but the floods may have destroyed his dam.

With water in the dam, Max and Glenn finally get a break, but their machines break down; Todd and Brianna face a phobia and a dangerous situation while the Mifsuds' season might end with a family feud.