Logan was part of the enhancement program run by Stryker, along with Sabretooth and Yuriko Oyama but he escaped and freed several of the program's other prisoners including Sabretooth. Logan has little memory of his past, but does suffer from fragmentary nightmares of his enhancement, which was revealed to have been at the hands of Colonel William Stryker. Logan is resentful of Cyclops and is attracted to Jean. Stryker has hinted that Wolverine was a volunteer for the enhancement program and was a fairly nasty bloke before it, but this could have been a complete lie to get Logan to unchain him.
Logan ended up searching for the 'Lion's Head' bar trying to find a woman he was photographed with years before. There he encountered an amnesiac Asian woman, whom he later learned was an undercover cop who had infiltrated a Japanese crime ring. This led to a confrontation with the Silver Samurai, a Japanese mutant with a charged-up sword. After helping the cop finish her case, he ended up in Canada.
X1: Logan began to fight in cage matches to make some money, and it was there that Rogue saw him pop his claws against some losers who wanted their money back. Logan left the bar and felt or smelled Rogue in his truck's trailer and threw her out, but then relented and stopped for her. They didn't get far before being attacked by Sabretooth, but fortunately they were both rescued by the X-Men. In both the adaptation of X-Men 1 and the Rogue and Wolverine prequels, Rogue is seen asking for help from Logan to deal with truckers she'd been hitching with. This differs greatly from the movie's cage fight scene. In the adaptaion of X-2 Wolverine is seen using the Danger Room..
Following the medical exams, everyone thought that Magneto was after Logan for some reason, but it turned out that Rogue was the target. Logan went after her when she ran away (because she drained his powers when he stabbed her during a nightmare), but was outmatched by Magneto, who simply magnetized his adamantium bones and threw him away. Then Logan joined the X-Men to battle Magneto and save Rogue. He had a vicious confrontation with Sabretooth, and regained his dog tags (taken by the evil mutant in Canada), then had Jean and Storm lift him up to Magneto's machine, which he destroyed. After allowing Rogue to take his healing factor, his multiple wounds re-opened and he nearly died. Professor Xavier then directed Logan to Alkali Lake as a starting point for his search for his past.
X2: Logan found nothing at Alkali Lake except ruins, and returned to the Xavier Institute. While he initially didn't plan on staying long, Stryker's attack on the school forced him to go on the run with Rogue, Bobby and John. Posing as an art teacher, Logan led the kids to Bobby's house, where they were rescued by the X-Jet after an altercation with the police.
Upon returning to Alkali Lake, Wolverine was cornered by Stryker and pitted against Deathstrike, whom he eventually killed by dumping her into the adamantium injection tub. Then he found Stryker chained to an aircraft and refused his pleas for help even though it meant the secrets of his past would be lost. Following Jean's self-sacrifice, Logan appeared to have reconciled with Scott as well.
X3: Wolverine remained at the mansion for Jean's funeral, then agreed to sub for Cyclops in a Danger Room training session for junior X-Men Kitty Pryde, Rogue, Iceman and Colossus.
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