BTOB's Sungjae and Peniel take on a dangerous cliff climb on 'Laws of the Jungle'

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Kim Byung Man tried to teach the two BTOB members how to make it up a�hill but he utterly failed as he kept on tripping along the 'slippery' slope. �Embarrassed, the captain said, "I was just trying to be funny." �"It's not that slippery..." said Sungjae, trying his best not to laugh.

Soon, the trio found themselves face to face with a steep cliff, as the only way up was climbing on a bamboo ladder. "There's no end to this," Sungjae, examining the overall height they had to climb.

After the steep climb, they reached a nearby murky lake with a massive waterfall and they decided to take a break. �But the break didn't last long as a strong wind blew over, causing the members to take cover.