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.

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.

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.

A few players enter the next round — which promises equal doses of sweet and deadly — with hidden advantages. Meanwhile, Jun-ho sneaks his way inside.

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.

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.

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

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.