Cartwright descendants from the series aid the once-notorious outlaw Frank James (Leonard Nimoy), on the run from renegade Pinkerton agents. Bronc: Ben Johnson. Benj: Michael Landon Jr. Josh: Brian Leckner. Siringo: Dennis Farina. Adam Jr.: Jeff Phillips. Jacob: Richard Roundtree. Sara: Emily Warfield. Buckshot: Jack Elam. Fenster: Dirk Blocker. Mark Tinker directed.