This short lived Western TV series was spun off from the 1972 Mark Rydell film of the same name which starred John Wayne. Moses Gunn replaced Roscoe Lee Browne as Jedediah Nightlinger the Chuck Wagon driver from the film and Diana Douglas was cast as the widow of the John Wayne character. A few of the `Cowboys' from the original movie renewed their characters but none of the episodes were anywhere near to what the film had been.