Mustang Valley

‘Assignment: Dave Hallett, U.S. Marshal: Recover bullion and currency stolen from the Salida - La Junta Stage by killers Jack and Ed Wallis. Jack Wallis hung five years ago. Ed Wallis due release from Austin prison.’
Ed Wallis had got away with a prison sentence because of his tender age, but he’d had to grow up some in prison. Hallett, meeting Wallis on release, did not rate him a killer. However, others are convinced of Wallis’ guilt and want Wallis to lead them to the loot.
Hallett moseys on to Rocky Ford, where he manages to get on the wrong side of Ed’s sister, the beautiful Stella Wallis, who is struggling to keep the Anvil horse-ranch going. Stella is friendly with handsome rancher Brett Turner and Hallett disapproves for more reasons than one.
Hallett, with the aid of the enigmatic Cole Duggan, goes out to deliberately provoke the local populace in the search for truth, getting angry reaction from Turner and his trigger-happy crew, banker Henry Roach, storekeeper Caleb Hanley and Marshal Hoadby.