PLAYou - Season 1 Episode 4 Dungeon

[Mission] Acquire treasure in the cockpit at the end of the train. This week on “PLAYou,” Jae-suk is at a trail depot. He boards a retired train for this week’s mission, which is to get to the end of the train and acquire the treasure. He runs into all kinds of hardships and monsters along the way, and he’s horrified. He needs six keys to open the door to the last car, so find out if he succeeds.