00:01:20 The losing team (not Gi-hun's) falls over the edge of the platform, and Gi-hun's team nearly goes over the edge but are saved when the rope is cut. Fast-forward 00:01:40.
00:05:40 The guards are shown hosing blood off the floor and carrying coffins to the incinerators. The scene cuts to the makeshift "operating room," where a new body is put on the table for the doctor to pick apart. Fast-forward to 00:07:01.
00:18:21 The guards enter the "operating room" where the doctor is covered in blood and busy cutting out someone's organs. Fast-forward to 00:19:38.
00:20:33 There's an up-close shot of a knife slicing into skin and someone's chest cavity being peeled back. While operating, the doctor and guards get into an argument. Fast-forward to 00:21:28.
00:21:40 Tired and frightened, Gi-hun begins to hallucinate smoke entering the dorms and relives the police brutality he and his coworkers faced when they went on strike. Gi-hun sees his friend from the car company he worked at begging for his help and is reminded of the fact that he wasn't able to save him. Fast-forward to 00:22:30.
00:24:54 Back in the "operating room," the guards discuss what it was like to see the players eliminated, selling the players' organs, and having nightmares about the games while the doctor operates. Fast-forward to 00:25:37.
00:26:12 The scene flashes back to the "operating room," where the guards start to get suspicious of the detective. Fast-forward to 00:27:10.
00:28:19 A dead body is shown on a table and then moved to a coffin. Angry that they can't tell him anything else about the upcoming games, the doctor threatens a guard and starts shouting. Fast-forward to 00:29:30.
00:30:29 The doctor has taken a guard hostage, so the other guards attempt to trick him into letting the guard go and a fight ensues. The remaining guards try to reach for their guns but the doctor stabs one of them to death just before another guard starts swinging at him with a pipe. Fast-forward to 00:32:00.
00:33:49 Jun-ho and one of the other guards head to an underground cave, where they get ready to transport the organs underwater. Suspicious of his behaviour, the guard holds a knife to Jun-ho's throat and demands to see his face. Jun-ho pulls a gun on him and the guard lies to save his own life. The detective sees right through his lie and shoots him before pushing his body into a nearby pool of water. Meanwhile, in another part of the building, a guard tries to gain the doctor's trust by taking off his mask. The Front Man appears and shoots the guard for revealing his face and the doctor is killed. Fast forward to 00:40:00.
00:41:50 The Front Man discovers the body of the guard Jun-ho killed and digs a knife into his forehead to pull out the bullet that killed him. Fast forward to 00:42:14.