The Lost Tapes’ Shows Dangerous Amazonian Trek [Video]

A trek for cancer awareness across the Amazon in South America began with two dozen people — but only one finished.

That’s the story of the limited docuseries Expedition From Hell: The Lost Tapes, which premieres on Sunday, May 12, on the Discovery Channel and on Max and follows special forces veteran Mickey Grosman as he leads a group of men through the rainforest in an adventure that some involved said went wrong.

The first episode follows the start of the journey as others quickly realize Grosman is not the leader they were expecting.

As participant Kevin Jackson says in the premiere, “He’s a strong guy, don’t get me wrong. But there’s gonna be a strong guy with no team if he keeps pushing everybody else the way he’s pushing. I don’t think there’s one happy person here besides Mickey.”

Grosman, who survived cancer, promoted the trip …