Misfortune chases the team when a deadly caiman sets its sights on Mehgan, but then a potentially crippling accident leads to an astounding find, a coded message from the past that could make it all worth it.
The treasure hunters make a historic discovery in a cave system, but not one they expected, and a run-in with a jaguar leads to another revelation, but the new trajectory has tragic consequences for Captain Keith.
A critical clue on Snake Island sends the team into the dangerous Paraguayan jungle, with more deadly predators than before. A historic artifact brings them closer to the treasure, but two life-threatening encounters nearly end the expedition.
The team tracks down a unique marker, taking them to a maze-like location riddled with waterfalls and caves. Their determination pays off as they start unearthing priceless artifacts and finally hone in on the resting place of the treasure of the trinity.
The team uncovers proof of treasure in the jungle near a historic mission, and a spooky visit to an antique black market yields a tantalizing taste of Jesuit silver, leading them up one of the most dangerous rivers and deeper into this cursed history.
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.
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.
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.
The team finds even more artifacts that lead them closer to treasure. They meet with a local historian who gives them an invaluable clue, but also a warning about the treasure's dark and cursed past, forcing them to reconsider their strategy.
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.