This movie is the prequel to the xmen movie series. It is the start of how the x-men was born. Why wolverine can’t remember his past and how all the mutant heroes of x-men got together.
It also reveals the relationship of Logan with his arche enemy Sabertooth and how he got his powers.
Wolverine is supposed to be the awesome weapon x but when he heard that he’s being used as a test experiment for the next weapon xi, he goes on a rampage and sought revenge for a close someone.