Chamaco finds himself on the wrong end of a firing squad after tracking an ex-Confederate to interrogate him about General Beauregard's missing gold. He's saved by a stranger who calls himself Stuart Byrnes. Stuart claims to know the location of Beauregard's strongbox, and so Chamaco takes him to Blake's camp. After a sort of initiation by the gang, Stuart leads Blake's men back across the border to Durango to retrieve the gold.
Unfortunately the movie Payment in Blood is not yet available on HBO Max.
| Writing | Tito Carpi | Screenplay |
| Writing | Enzo G. Castellari | Screenplay |
| Writing | Marino Girolami | Story |
| Directing | Enzo G. Castellari | Director |
| Sound | Francesco De Masi | Original Music Composer |
| Camera | Aldo Pinelli | Director of Photography |
| Sound | Alessandro Alessandroni | Musician |
| Sound | Franco De Gemini | Musician |
| Lighting | Ivo Bevilacqua | Lighting Director |
| Production | Marino Girolami | Producer |
| Production | Roberto Sbarigia | Producer |
| Directing | Maurizio Mancini | Assistant Director |
| Production | Francesco Orefici | Production Director |
