An elite team of treasure hunters search for clues to a vast fortune they believe is hidden on Brazil's deadly "Snake Island." But team tensions, mechanical problems and the threat of modern-day pirates could derail the expedition as it begins.

Promising clues off the coast motivate the team to gear up for their first venture onto the deadly Snake Island itself, where they'll face triple digit heat, cave-ins, and their first terrifying encounter with one of the world's deadliest vipers.

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

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. Cappy fears he’ll have to strand the land team as their window to find the treasure is about to slam shut.

Looming storms & 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 the island than ever, tempting fate with every step, & makes a discovery that will change their lives.