When Frank's former partner, who's a drunk and living on the streets, thinks he saw a murder, he goes to a police station and has them call Frank. Frank goes there. Klein's upset that he's taking him seriously because he feels the man's a disgrace. But Frank reveals that the man just may have given them a lead on some kidnappers who have been kidnapping people all over the country and killing their victims. So Klein let's them investigate.
Klein tells Frank that he thinks that something is going on at four different hospitals when there appears to be a high mortality rate. Klein later suffers a heart attack and finds himself in one of the hospitals in question. When Frank goes to the administrator about high death rate, he refuses to let Frank investigate, so he calls several city officials who contacts the commissioner who tells Frank to back off. What they don't know is that the administrator is involved in black market organ scam and his next target is Klein.
Someone is setting bombs all over the city. The bomber sends a message where his next target will be. And eventually he reveals his next target--Klein.
Charlie's been keeping an eye on a bookmaker. One day he was out with his girlfriend who's a film maker and they're shot. Frank goes after the book maker who claims he didn't do it and that the actual target is Charlie's girlfriend. They suspect a Chinese businessman.