Timecop

When time travel was developed by a scientist in 1994, there was the need to create the Time Enforcement Commision (TEC) under the control of Senator Aaron McComb to protect the past from modifications. The police office Max Walker is invited to join the TEC, and when his wife Melissa is murdered by strangers, he accepts the invitation to work under the command of Eugene Matuzak. In 2004, Walker is assigned to capture his former partner Lyle Atwood that is manipulating the stock market in 1929. Atwood tells that he is working for Senator McComb, who is a powerful politician that is running for president. Atwood prefers to die and does not confess that McComb is a criminal. Now Max knows the truth but McComb is changing the past and Max does not know how stop him.