A

man sitting in an English pub in Washington, D.C. gets up from his table and calls emergency services on the bar's pay phone. When the operator picks up, he merely presses six keys on the phone, spelling out the word "KABOOM". Soon after he leaves the pub, a bomb blast tears the building apart while he watches from across the street. Delving into the man's psychosis, Frank learns that, unlike ordinary terrorists or thrill killers, this man is after something he can only find within the explosions he creates. Frank tries to help the FBI to track him down before the death toll can mount any further.

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