When a bomb explode on a ferryboat boat in New Orleans, particular secret agent from the FBI and ATF come up to the scene, include ATF agent Doug Carlin. After see satellite surveillance, Carlin besides stumble upon a adult female name Claire Kuchever, who has be murder shortly before the ferryboat incident. Carlin besides find out that he can use the surveillance system to go backwards in clip. So, he clip falsify 4 years before the ferryboat incident, so he can halt Claire’s slaying, and to halt the ferryboat incident.