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Expedition Unknown S18E5 — Secrets of Mexico's Underworld

6.5

Expedition Unknown•Season 18•Episode 5

Secrets of Mexico's Underworld

6.5/10 · 2 votesJul 22, 202642 min

Josh joins archeologists as they bushwhack through thick jungles and rappel into vast caves in search of the lost Zoque culture. Deep underground, the team pushes through flooded sections and finds thousands of ritual offerings that may solve the mystery.

Previous episodeE4 · Sunken City of Pirates Next episodeE6 · Inca Treasure Tunnels

Seasons18

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Season 18 Episodes7

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Secrets of Mexico's Underworld still

E5 6.5Now viewing

Secrets of Mexico's Underworld

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Cast1

Josh Gates

Josh Gates

Self - Host

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Episode Summary

"Secrets of Mexico's Underworld" is episode 5 of Expedition Unknown season 18. It scored 6.5/10 from 2 votes. It aired on July 22, 2026.

Next: E6 · Inca Treasure Tunnels Best of Season 18