The second of Monogram's 1945 trio of "Cisco Kid" westerns, In Old New Mexico stars Duncan Renaldo as Cisco and Martin Garralaga as Pancho. The plot concentrates on heroine Ellen (Gwen Kenyon), a nurse accused of murder. Gallant Cisco "kidnaps" Ellen from the authorities, then sets about to prove her innocence, all with the cooperation of a sympathetic sheriff. Cisco and Pancho stage an elaborate ruse to force a confession out of the genuine killer, which in real life would of course be thrown out of court-but whoever said that these films had anything to do with real life? After a third "Cisco Kid" entry, South of the Rio Grande, Duncan Renaldo would temporarily leave the series, returning with a vengeance three years later.
by Hal Erickson synopsis