Episode 2x1, Man of Science, Man of Faith
Locke wants to go into the hatch, despite Jack wanting to wait. He lowers Kate down, but then loses her.Later, inside the hatch, Desmond holds a gun to Locke's head to get Jack to put down his gun.
Episode 2x2, Adrift
Locke pretends that "he is the one" when Desmond asks him, but then doesn't answer the question properly and Desmond knows he's lying. Locke gets Desmond to tie up Kate instead of him, and then talks to Desmond, but gives more answers than he gets.Episode 2x3, Orientation
Locke believes, from what Desmond has told him and from the Orientation video, that they must push the button every 108 minutes.Episode 2x6, Abandoned
Locke figures out that Charlie has one of the Virgin Mary statue's with the heroin in it.Episode 2x8, Collision
Locke talks with Eko, and asks Jack to listen to Eko.Episode 2x9, What Kate Did
Eko shows Locke that he has some of the Orientation film and they splice it together and watch it to learn that the computer shouldn't be used for anything but the code.Episode 2x11, The Hunting Party
Locke goes with Jack and Sawyer to find Michael. Locke tries to get them to turn around and go back to camp, but Jack wants to push on.Episode 2x12, Fire + Water
Locke follows Charlie and finds the heroin stash. He takes the stash and puts it in the gun vault.Episode 2x13, The Long Con
Locke hides the guns to prevent people from having them and causing accidents, but it turns out that Sawyer was conning him and Jack, pitting them against one another, and Sawyer gained control of the guns.Episode 2x14, One of Them
Locke agrees with Sayid that the man Sayid found in the jungle should be tortured in order to get the truth from him. He changes the combination of the armory and helps Sayid lock himself in with the prisoner. Locke keeps Jack from going in, until Jack stops Locke from resetting the timer . Locke agrees to let Jack in at the last minute and runs to the computer, but he doesn't get the code input fast enough and the timer starts to set to some hieroglyphics, but before it finishes setting, Locke gets the code entered and the timer resets to 108.00.Episode 2x15, Maternity Leave
Henry Gale accuses Locke of letting Jack call the shots and Locke loses his temper and swipes a bunch of dishes onto the floor.Episode 2x16, The Whole Truth
Without Jack's knowledge, Locke asks Ana-Lucia to interrogate the prisoner, Henry Gale, in the armory.Locke shaves in the hatch bathroom as Jack is in the shower. Jack is upset that he is there, but Locke says the steam from the shower opens his pores, allowing him to shave. Plus, he wanted to talk about Henry and having Ana-Lucia interrogate him. Jack agrees and says he will talk to her, but Locke informs him that Ana-Lucia is in the armory at that moment.
When Ana comes out of the armory, she tells them that she didn't get any new info.
Locke is surprised that Jack lets Henry out to have breakfast with them. Henry wonders if this is treatment for good behavior for giving Ana-Lucia the map. Locke looks at Jack, wondering if Jack knew there was a map, because Locke didn't.
Episode 2x17, Lockdown
Jack gets mad because he didn't know Henry had drawn the balloon map for Ana-Lucia. He tells Locke to put Henry in the armory and storms off. "Why do you let him talk to you like that?" Henry says. Locke gets mad at Henry and puts him in the armory.Henry lays on his cot reading while Locke is in the other room listening to a record and riding the exercise bike. Locke hears a woman's voice through the speakers and goes to investigate. The woman says something about a protocol. Henry keeps asking what is going on as Locke gets more and more frustrated.
The woman on the speaker begins a countdown. When she reaches zero, blast doors come down, trapping Locke in the room. Henry asks what happened and Locke finally tells him, then lets him out of the armory to help pry the door open. They get the door open a little and Locke starts to crawl under, but the doors close on his legs. Henry pushes some weights under the door to relieve the pressure.
Locke tells Henry all about the button and tells him to crawl through the vent. The timer alarm goes off and Locke is sure that Henry won't make it. Suddenly the alarm stops and the lights go out. A blue neon light comes on, revealing a diagram on the blast door. Then the regular lights come on and the doors begin to lift. Locke finds Henry and is relieved that he hadn't left.
Jack and Sayid come in and verbally attack Henry. Locke tries to stop them, but can't.
