Danny's only ever seen this once before.

There was no time to wait.

This is an emergency.

You need to react instantly.

Dialed the office and I couldn't get through.

Two or three times I finally got through and, and our office operator just says, "Turn on your TV and get to the office," and I hung up.

He's the most experienced agent there, and his boss chooses him for a special task, follow a lead from Dulles Airport, where Flight 77 had taken off.

Police had found a vehicle parked in the Dulles Airport parking lot with California plates, and then when they ran the plates, the registered owner was one of the hijackers on Flight 77, and the address was a San Diego address, and that's the lead I got.