When Sgt. Fish stops by for a surprise visit, a woman threatens the men in the squad room with a homemade bomb, looking to lodge a complaint against a nearby hospital for making her husband work in an unsafe environment. Levitt and Dietrich bring in a couple long distance chess players, looking to file mutual assault charges at a nearby Post Office over disputed chess moves. Meanwhile, Harris receives word on the verdict of Ripner's defamation lawsuit and is less than thrilled about the outcome.