Gunslinger.

Gunslinger was a Western television series starring Tony Young that aired on the CBS television network from February 9 until May 18, 1961 on Thursdays from 9 to 10 p.m. EST. The series theme song was sung by Frankie Laine. Young played Cord, a young gunfighter who works undercover for the local army garrison commander, acting as a secret law enforcement agent in the territory. The series lasted for only twelve episodes. Gunslinger was the successor to Dick Powell's Zane Grey Theater.