Green and Lupo investigate after a package explodes at a scientific research lab, resulting in the injury of a pregnant security guard. The investigation soon turns to the scientist's latest experiments.

Lupo and Green investigate after a white teenager (David Kendall) and a young black girl (Tanya Anderson) are shot and killed in a local neighborhood. The investigation stalls when no one is willing to talk, but the detectives later learn that the victim had earlier had an altercation with someone in the neighborhood that led to a surprising altercation later that evening.