An explosion kills a man who is discovered to be the advance scout for a hitman. Quincy is in a race against time to find the assassin and thwart the plot to kill a government official at a hotel convention.

The body of a young girl is found at the side of a highway. Quincy determines that the body was moved after she died. Monahan thinks that her boyfriend, Toby Kenyon, killed her but he tells the police that she killed herself. Quincy believes the boy and asks Emily to do a psychological autopsy on the dead girl. This involves talking to her friends, family and teachers about she acted and talked over the last few weeks of her life.