When the Gannon family yacht catches fire and starts sinking, teenage daughter Julie jumps in shark-infested water, elder brother Luke dives after her, both are missing at sea. The fire was torched on board, so by a family member; they stranded because of a deliberate false marker, the parents remarked the salvager Helen B, which dad Ken confirms he avoided, fearing a huge bill for its help. Cooper's calculations allow finding a burned boy's corps- it's not Luke but Julie's ex, student visa holder Damon Loughlin, who was house-sitting Julio Elias's villa, where he was shot dead before the fire and $10,000,000 in gold bars is missing. The team finds fascinating DNA and missing data on three Gannons and their past after the gold and Luke turn up on the Helen B...
—KGF Vissers