Recruited by Wild Bill Donovan to set up an airline that will be an OSS front in 1943 Argentina, Marine pilot Cletus Frade monitors two German operations, including a concentration-camp smuggling ring and a Nazi protection group.
Investigating a string of murders targeting criminals in Philadelphia, homicide Sergeant Matthew Payne becomes alarmed when unrelated vigilante groups begin taking credit for the hits, which become increasingly violent and high-profile.