Tensions are already high between the American and Russian allies when two intelligence agents - one Soviet, one American - are found dead at Poltava, one of the Ukrainian bases. Billy is brought in to investigate, and this time he's paired, at the insistence of the Soviets, with a KGB agent who has his own political and personal agenda. In the course of an investigation that quickly sprawls out of control, Billy is aided by the Night Witches, a daring regiment of young Soviet women that flew outdated biplanes at night at very low altitudes, bombing hundreds of German installations. It's a turning point in the war, and allied efforts hang by a thread. Unless Billy and his KGB partner can solve the murders in an atmosphere of mutual distrust, Operation Frantic is doomed.