Turquoise Fever

The Otteson family work overtime to fill an order for an influential jeweller who wants high-grade turquoise and White Buffalo, a rare stone found only in Tonopah, Nevada. Their search unearths a 68kg nugget that may be the largest ever found.

Still reeling from Dean's death, the Ottesons' turquoise business grinds to a halt until Donna steps in to light a fire under everyone; Tony and Trenton reopen an abandoned mine; Tommy and Danny discover a promising tunnel from a long-ago time.

The Ottesons scramble to fill a new client's last-minute order; Tony and Trenton widen the pit at Apache Blue to safely extract the turquoise; Danny Otteson procures a big drill to penetrate the hard rock of the once-dormant Easter Blue Mine.

When an important overseas client arrives in Las Vegas, he places a huge turquoise order that could make or break the Ottesons' year. Realising they're short on stones, they hatch a plan to repurchase a mine once owned by their grandfather, Lynn.

Emily faces her fear of heights as the Ottesons build a perilous road to reach a remote clifftop of turquoise riches; JaKell's difficult pregnancy threatens to put Trenton's mining days on hold; Tristan and Lane take control of their first mine.

While prospecting a remote Ottseon claim, Emily finds a precious stone called variscite, and once the Ottesons confirm its potential value, they mobilise to open a variscite mine; Lane and Tristan struggle to get their first claim up and running.