Hoping to win easy money, a broke and desperate Gi-hun agrees to take part in an enigmatic game. Not long into the first round, unforeseen horrors unfold.

Split on whether to continue or quit, the group holds a vote. But their realities in the outside world may prove to be just as unforgiving as the game.

As alliances form among the players, no one is safe in the dorm after lights-out. The third game challenges Gi-hun's team to think strategically.

Gi-hun and his team take turns keeping guard through the night. The masked men encounter trouble with their co-conspirators.

Players pair off for the fourth game. Gi-hun grapples with a moral dilemma, Sang-woo chooses self-preservation and Sae-byeok shares her untold story.

The Masked Leader welcomes VIP guests to the facility for a front-row viewing of the show. In the fifth game, some players crack under pressure.

Ahead of the last round, distrust and disgust run deep among the finalists. Jun-ho makes a getaway, determined to expose the game's dirty secrets.

The final round presents another cruel test — but this time, how it ends depends on just one player. The game's creator steps out of the shadows.