1971 O'Hara U.S. Treasury XW-1 starring David Janssen, Lindsay Wagner, Gary Crosby

O'Hara, U.S. Treasury Original title: O'Hara United States Treasury
TV Series 1971–1972 O'Hara, U.S. Treasury (1971)
James O'Hara of the United States Treasury works in several branches to stop illegal activities such as smuggling contraband, tax evasion, and the like.
Creators: James E. Moser, Jack Webb
Stars: David Janssen, Stacy Harris, Paul Picerni
S1.E14 Operation: XW-1 Episode aired Jan 7, 1972
David Janssen in O'Hara, U.S. Treasury (1971)
While posing as an arms dealer Jim O'Hara pursues the source of an unfamiliar machine gun model that is turning up in crimes.
Director: Ron Winston
Writers: James E. Moser, Jack Webb, William P. McGivern
Stars
David Janssen, Lindsey Wagner, Ed Nelson, Gary Crosby