Chuck Connors, Johnny Crawford, Paul Fix. As the popular series winds down, Lucas and his now teenage son Mark face a number of crises, including one where Mark falls off his horse and is paralyzed and Lucas is wrongfully tried for murder while trying to help a stranger he thinks is innocent of the crime. 13 episodes on 3 DVDs. 1963/b&w/6 hrs, 30 min/NR/fullscreen.