When eight-year-old Jenna Wechsler dies as a result of a building explosion, Green and Cassady follow the trail of evidence to Rosalie Schaffner, the owner's ex-wife. McCoy and Rubirosa pursue Rosalie Schaffner despite a lack of concrete evidence, but the case takes a turn when Rubirosa finds a piece of evidence that points them in a new direction.

When Carl Mullaly is discovered murdered in his apartment, Green and Cassady learn that he had recently been profiled on HardFocus, a tabloid talk show that exposes sex offenders who are caught via the ScumWatch website. With an eight-year-old girl as the only eyewitness, detectives arrest the murderer, but McCoy and Rubirosa soon learn that HardFocus is a lot more involved than they claim.