M.I.B's Kangnam, LABOUM member Solbin, and GOT7's JB teamed up to begin their treasure hunt, going deeper into the jungle. The trio discovered a massive sinkhole in the ground, leaving them in awe of nature's wonders. Afterward, they found themselves entering a gloomy limestone cave.

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Apart from Kangnam and JB, who were scared out of their wits, Solbin boldly led the two men inside the unknown premises. "Could it be up there?", she pointed out and began searching for hidden clues.  However, the map was nowhere to be found.  Just then, JB yelled out saying, "Hey guys, I think there are human bones lying around here."  With that, the group shrieked at the sight of actual human remains, which was a first on the show.

It's explained that the Native tribe often holds rituals of the deceased inside this particular cave.