Crossfire is the second story from Batman: Gotham Knight.
Crispus Allen and Anna Ramirez are partners and members of the Major Crimes Unit, hand-picked by James Gordon. The two are assigned to take the recently-captured Man in Black (actually Jacob Feely, an escaped inmate from Arkham Asylum with an expertise in advanced electronics and explosives) to the Narrows to be incarcerated. On their way, they argue over whether or not Batman can be trusted: Allen says they're running errands for a vigilante, while Ramirez replies that Batman has changed Gotham City for the better. As they are heading back, Allen declares his intention to leave the MCU, and Ramirez pulls into a vacant lot to confront Allen. However, the two get caught in a gang war with The Russian and Sal Maroni. Maroni's men are gunned down, and Maroni takes refuge behind Allen and Ramirez's patrol car, which The Russian subsequently destroys with a rocket launcher. Ramirez and Maroni manage to get clear in time, while Allen is rescued by Batman, who proceeds to take out The Russian and his men. Maroni then threatens to kill Ramirez, but he, too, is dispatched by Batman. Batman recognizes Allen and Ramirez as Gordon's hand-picked officers, remarks that Gordon is a good judge of character, and disappears.