Timecop (1994)

Back Cover:

Summary:

It is the year 2004. Time travel is a reality, and a new breed of criminal has emerged.

Suddenly, the ability to alter historical events, control financial markets, even bring entire nations to ruin is a possibility. The Time Enforcement Commission was formed to enforce one simple rule: No one goes back.

But someone has broken that rule - and Max Walker, Timecop, is engaged in a fierce manhunt for a corrupt senator who has acquired the power to change history. With time literally running out and his own existence in jeopardy, Walker must also confront the temptation to prevent a personal tragedy - the murder of his own wife.