The film chronicle events in Jackson's (Sam Strike) teen years, revealing how he became the infamous Leatherface. Violent teenager Jackson escapes from a mental hospital with fellow inmates Bud (Sam Coleman), Ike (James Bloor) and Clarice (Jessica Madsen). The group kidnaps nurse Lizzy (Vanessa Grasse) in their escape. As the group flees with their captive, they are pursued by Hal Hartman (Stephen Dorff), a vengeful and determined Texas Ranger.