Following their breakout success in England, flagship punk rock band the Sex Pistols venture out on their first U.S. tour. Temperamental bassist Sid Vicious takes his troubled girlfriend, Nancy Spungen, along for the ride. Along the way, the couple's turbulent relationship strains the patience of bandmate Johnny Rotten and manager Malcolm McLaren, while plunging Sid and Nancy into the depths of drug addiction and co-dependency.
