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 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.

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.

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.

After a tragic event on their way to a Guarani village, the team secures vital information from the village elders who speak of a special stone hidden near The Demon Falls that carries directions to the resting spot of a legendary fortune.