Timerider: The Adventure of Lyle Swann is a 1982 science fiction Western film directed by William Dear and starring Fred Ward as Lyle Swann, a cross country dirt bike racer in the 1980s who is mistakenly sent back in time to 1877. The film was scored, produced and co-written (with director William Dear) by Michael Nesmith. Plot Lyle Swann is a well-known dirt bike motorcycle racer who is in the desert competing in the Baja 1000, a multiclass vehicle cross-country race. Swann has a reputation for being a great rider but is plagued by technical problems from the high-tech gadgetry he incorporates into his C and J framed XT500 Yamaha. When Swann accidentally goes far off course, he stumbles across a time travel experiment that utilizes "maser velocity acceleration" to send objects (in this case, a simian subject by the name of Esther G.) back in time. Swann rides through the field and gets sent back to November 5, 1877. The scientists in charge of the experiment soon realize what has happened, but Swann rides off, unaware of what has happened to him, before he can be returned to the present. While taking a swim break in a local pond, he runs into a gang of outlaws led by Porter Reese, who becomes obsessed with stealing Swann's motorcycle, and the outlaws pursue Swann into the small village of San Marcos, but his red suit and dirtbike scare the local Mexicans, who think he is 'El Diablo' (Spanish for 'The Devil'). There, he meets a beautiful woman, Claire Cygne, who gives him a safe place to hide, and who severely wounds one of Reese's men Carl Dorsett. The village priest compels them to withdraw, but Reese continues to plot the capture of Swann's dirtbike. In the village, Swann is seduced by Claire and sleeps with her, but she is later kidnapped by Reese's henchman Claude Dorsett as revenge for her shooting and wounding his brother Carl. They also manage to capture the dirtbike, leading to a series of hijinks, while Swann gets help from a posse of two U.S. Marshals, Potter and Daniels, who are trying to capture or kill the gang. Potter has a personal vendetta against Reese, for Reese killed Potter's son two years previously. Swann manages to retrieve his dirtbike and rescue Claire. Potter is killed by Reese in an ambush, and Daniels is mortally wounded and dies