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The world's toughest treasure hunters push their bodies and bank accounts to the limit on a quest to strike it rich, hunting the legendary Queen of Gems - Opal.
Australia's toughest treasure hunters are back, taking on the extreme hardship of the Australian outback in pursuit of opal riches.
Season 3 originally aired on Thursday, October 17, 2019
Season 4 originally aired on Thursday, February 6, 2020
