O.S.S. - World War II Intelligence agency featured on the  wartime drama O.S.S/ABC/1957-58.

During the Second World War, the Allies developed the O.S.S. (Office of Strategic Services) to gather intelligence on their enemies.

Filmed in England and France, the series starred Ron Randall as Captain Frank Hawthorne who worked with the Allied Resistance to battle the Nazis behind enemy lines in France. He was assisted by Sergeant O'Brien (Robert Gallico) and The Chief (Lionel Murton).

Each episode title began with the word "Operation" such as "Operation Powder Puff," "Operation Death Trap" and "Operation Jingle Bells."

TRIVIA NOTE: The series (26 episodes) technical consultant/co-producer was Colonel William Eliscu, a former O.S.S. member.

In 1947, the United States Congress passed the The National Security Act that superseded the O.S.S. and formed the C.I.A. (Central Intelligence Agency).