Sayid Jarrah: Listen carefully, There's a well on the main island, half a mile south of the camp we just left. Desmond's inside it. Locke wants him dead which means you're going to need him for something. You understand me?
Jack Shephard: Why are you telling me this?
Sayid Jarrah: Because it's going to be you, Jack.
[runs off with the bomb]
Hugo 'Hurley' Reyes: Sayid!
Jack Shephard: Now, wait... wait.
James 'Sawyer' Ford: What the hell are you doing, Doc?
Jack Shephard: Nothing's gonna happen.
James 'Sawyer' Ford: What?
Jack Shephard: Don't pull those wires out, we're okay. Nothing's gonna happen.
James 'Sawyer' Ford: I don't pull this wires Locke's gonna blow us to kingdom come.
Jack Shephard: No, he's not. Locke can't kill us.
Hugo 'Hurley' Reyes: Uh... what?
Jack Shephard: This is what he wanted. This is what he's been waiting for. Everything he has done is to get us here. He wanted to get us all here inside this submarine at the same time. Nice and close place where we had no hopes of getting out of.
Jin Kwon: I don't understand.
Jack Shephard: Locke said he can't leave the island without us. But, I think he can't leave the island unless we're all dead. He told me he could kill any one of us whenever he wanted. So what if he hasn't because he's... he's not allowed to by the code of the island. What if he's trying to get us to kill each other?
James 'Sawyer' Ford: Stay out of my way, Doc.
Jack Shephard: No! If he wanted that thing to blow up, why would he put a timer in it? Why not just throw it inside?
James 'Sawyer' Ford: I don't care.
Jack Shephard: Nothing is going to happen.
James 'Sawyer' Ford: It's not your decision to make.
Jack Shephard: He can't kill us.
James 'Sawyer' Ford: I'm not gonna stand here and do nothing and let his bomb go off.
Jack Shephard: James, we are going to be okay. You just have to trust me.
James 'Sawyer' Ford: Sorry Doc... I don't!