An elite team of treasures hunters begin their search for a vast fortune said to be hidden on Brazil's deadly Snake Island.

A jaw-dropping discovery on the island's perimeter fires up the team, but as excitement builds, so do tensions between team members. And as caution gets thrown to the wind, a series of dangerous encounters threatens to end the mission, and people's lives.

As injuries pile up, Cork and his team push deeper into the deadly interior of Snake Island in search of the Treasure of the Trinity. A trail of clues gives them new hope, but also leads to an unexpected and dangerous confrontation on the island.

A dangerous run-in leads the team to an astounding new clue, but a communications breakdown leaves them in the dark about an approaching storm, and Cappy fears he'll have to strand the land team as their window to find the treasure is about to slam shut.

Looming storms and a leaky boat threaten to shut down the mission just as Cork closes in on the Treasure of the Trinity. The team pushes deeper into Snake Island than ever, tempting fate with every step, and makes a discovery that will change their lives.