Freighter. Michael is wheeling a tank labeled "nitrogen" across the deck. Sun asks Michael what's going on below, and Michael quietly asks her if she's told anyone about the C-4. She seems almost insulted at the idea that she would tell everyone that they're about to be blown to kingdom come, and asks him if they're able to deactivate it. Michael tells her that it's not yet set to explode, but that the nitrogen tank will help them disarm it. He wheels the tank away, but stops to tell her he'll send Jin to the deck to be with Sun. She tells him that she's pregnant, and he seems sincerely happy when he congratulates her.
Down below, Michael tells Desmond and Jin that they can use the liquid nitrogen in the tank to freeze the battery, which should slow down the chemical processes inside it that produce power, giving them a lot more time to disarm the bomb. We're just all going to pretend that this make sense so I can get on with the recap. Because there's only one canister of nitrogen, Desmond suggests that they save it until the radio receives the detonation signal, but Michael wisely points out that it would be too late then. (I should point out that there are a green light and a red light on top of the radio. The green light is lit and the red light is dark.) Desmond grabs a pad and tells Jin to help him begin tracing all the various wires. Michael, despite his promise to Sun, does not send Jin up to be with her.
Daniel and the Zodiac arrive back at the beach. We can see that the freighter is now close enough to be seen from shore. He tells Juliet that the first group is safely on the boat. He just needs to get some water before taking the second group. Juliet tells him that she'll organize the second group, and then thanks him for helping the Losties.
Miles and Charlotte are hanging out near the food supply shelter. Miles is eating some nuts. Rose chastises him for eating peanuts without permission, and tells him that she'll be keeping an eye on him. She also calls him "Shorty." She's been spending too much time with Sawyer. Rose walks away, and Daniel walks up, whispers Miles's name, and jerks his head surreptitiously to the side. Miles, who shares my opinion of Dan's spy abilities, asks him if there's something wrong with his neck. Daniel huddles with Charlotte and Miles and tells them that they need to be sure to be in the next group to go to the freighter. Miles tells him that he plans to stay. Daniel wonders if he's explained the direness of the situation. Miles: "Oh, no, you're very dire. But I still plan to stay." Daniel tells Charlotte she's got ten minutes and walks away. She keeps packing, and Miles tells her that he's surprised she's planning to leave after she "spent all that time trying to get back here." Charlotte: "What do you mean, 'get back here?'" Miles: "What do I mean?" His back-story had better be good, because I am getting pretty sick of this smartass psychic routine.