Watch The Lost Trail Full Movie Free Online 123Movies. Having briefly abandoned his standard "Nevada Jack McKenzie" characterization in Flame of the West, cowboy star Johnny Mack Brown was back as Nevada Jack in Monogram's The Lost Trail. Vowing to bring in a gang of stagecoach outlaws, Nevada redoubles his efforts when he learns that the owner of the stagecoach line is pretty Jane Burns (Jennifer Holt).