I don't remember much but it was about agent or police officer, anyway this cop ernt back in time in order to prevent crimes of one particular bad guy. He wants to stop this guy before he committed any crimes and meets his younger version. I remember in the end after some events this boy chose to become good, and the main character sees that all bad guy's crimes disapper from the crime list on his pad right in front of his eyes. This movie is at least 10 years old, possibly even more. Style is like those 90s actions with arnold schwarzenegger or Van Damm