Season 1 of The Blue Ocean Diamond premiered on December 17, 2020.

When the cursed diamond worth billions of baht is stolen, there are 10 suspects who aspire to own this extremely valuable diamond. Security company owner Prompoom, former police officer, is responsible for breaking the case, finding the real thief. Together with Lisa, the jewel owner’s daughter, they must work side by side to find out the mastermind behind everything.