In this prequel to the upcoming X2 movie, Wolverine hunts down the secrets to his mysterious past and finds someone looking for similar answers... Sabretooth! Starting where the original X-Men movie left off..
After having left the X-Men to go at Alkali lake, just as Professor X told him, Logan stops to fill Cyclops' motorcycles' gas tank. He then finds out that Sabretooth had been tracking him...After a fight between the two, Logan notices that Sabretooth has dog tags similar as his. He then understands they started on the wrong foot. He forces Sabretooth to offer him a couple of drinks. The two start having a conversation, in which they talk about the fact that they both lost their memories. Apparently, Sabretooth is shocked by the few memories he has, memories in which he kills babies and old men. They are interrupted by William Stryker's men, who aim for Sabretooth, and, after having recognised him as "Weapon X", Wolverine. The two show instinctive team work, even of they don't know that they are actually brothers, but they are eventually brought down. The two wake up on a helicopter, and Sabretooth throws Logan out of it, sacrificing himself to have Wolverine saved. In the end, Stryker, having noticed that the adamantium bonding didn't work on Victor's bones, ordered to his men to shoot Sabretooth with adamantium bullets... consequentially killing him.
- In X-Men Origins: Wolverine, Stryker says that Victor's structure could not resist on him.