From the site:
Frequently referred to as "the Mount Rushmore of country music," The Highwaymen Willie Nelson, Waylon Jennings, Johnny Cash, and Kris Kristofferson were American country music's first bona fide supergroup, an epic quartet comprised of the OUTLAW COUNTRY genre's pioneering stars. An essential musical and cultural influence, the Grammy-winning group was active from 1985 1995: recording three albums, touring the world and acting in the movie Stagecoach (1986). AMERICAN MASTERS The Highwaymen: Friends Till the End,premiering nationwide Friday, May 27 at 9:00 p.m. ET on PBS (check local listings) as part of the 30 th anniversary season of THIRTEEN's American Masters series, explores how these men came together and the fruits of their historic collaboration.
Produced and directed by four-time Emmy Award-winner Jim Brown (American Masters Pete Seeger: The Power of Song; Billy Joel: A Matter of Trust The Bridge to Russia, The Weavers: Wasn't That A Time!), the documentary features vintage performances, rare, behind-the-scenes footage of life on the road and in the studio with producer Don Was, and new interviews with Nelson; Kristofferson; family members Jessi Colter (country singer and Jenning's wife), Annie Nelson, Lisa Kristofferson, and John Carter Cash; band members Reggie Young (guitarist) of The Memphis Boys, Mickey Raphael (harmonica player) and Robby Turner (pedal steel guitarist); and managers Mark Rothbaum and Lou Robin. Artists influenced by The Highwaymen, including John Mellencamp, Toby Keith, Marty Stuart, and Ray Benson of Asleep at the Wheel, are also interviewed. Jennings and Cash add their perspective via archival interviews.