Wolverine is many things. The most famous of the X-Men. A gruff hero with unbreakable metal claws and a superhuman healing factor. But he's about to face the greatest challenge of his life! The sinister Sabretooth is coming for him, and he wants to prove that he's the toughest mutant around. Can the unstoppable Wolverine beat a mutant that has the same healing powers and sharp claws as him?