There is a girl, though she's quite dead. The body of Claire Kuchever (Patton) washes ashore, apparently the victim of the blast. Carlin suspects foul play, but suggests the killer is involved in the bombing. Solve the murder, find your terrorist. Enter Val Kilmer's FBI agent Pryzwarra, who invites Carlin to join a special unit involving some unique equipment. We are led into a den of geeks and gadgets, which purportedly allow one to view a three-dimensional image of almost any location in the city—from four days ago! Carlin is skeptical, which eventually leads them to confess, "We've managed to warp the very fabric of space!"
If you haven't guessed, it is now necessary to divulge that we're in a time-travel movie. This lets us learn that Paula Patton is even more attractive playing a live woman than a dead one. It also means that the plot will spiral out of control and fall through so many loopholes that you'll need Doc Brown as a tour guide.
What could've been a fascinating exploration of the interjection of time on love and loss quickly devolves into a preposterous car chase in which Washington races a Hummer down the freeway trying to catch up to the vehicle of the killer, which he drove down the same road four days prior. Worst of all is the ending and the introduction of multiple timelines, which means we no longer have to care about any of the characters. If they die in one universe, it's all right; they're perfectly fine in another.