Timecop (1997)

In the near future, cocky Timecop Jack Logan tries to "protect the past and preserve the future" by going on time-traveling missions assigned by the Time Enforcement Commission, an agency that monitors old newspapers to look for "ripples in time" that signal bad guys have traveled into the past and are trying to change history for their own insidious ends. The TEC team working with Jack include dorky but brilliant Dr. Dale Easter, wisecracking technician Claire Hemmings and Jack's boss, Eugene Matuzek.