Ok, Kate found a shot gun and played the hero for John. But in her efforts to get (was his name Desmond?) off John That guy shot the computer that reset the counter. He began freeking out saying that they were all going to die now. To make a long story short Jack managed to get out of him why he was there, and that was because he was on a race around the world and a guy grabbed him when he landed on the island and told him to put in the code and push execute or they would all die. He's been there ever since. Jack asked why he thought that and there is a film that he and John watched that says you have to do this and there is a science experiment going on, but this is something that went wrong. So, that's what the counter is for, to determine when everyone will die apparently if you don't put in the code every 108 minutes. Jack is having a hard time believing it. Desmon, if that's his name, ran away, so it looks like John will be staying underground to push the button now every 108 minutes.
We still don't know who "the others" are. But Saywer had a plan to shoot the big sumo looking guy, but one of the others were put in the cage with them and tricked them into thinking she was on the flight with them and had been lost on the island alone. She got the gun and got out of the hole.
We still don't know where Walt is either. Looks like Jin ( I think that's his name, the Japanese guy) starts speaking english soon here. That's kind of wierd, and he says that everything that we know is about to change.
Kathy
