In the 1960s, young George Carlin cuts his teeth in comedy – but stifles his rebellious instincts to achieve mainstream success. As the counterculture emerges, Carlin reinvents himself, shocking and delighting 1970s audiences with sets like "The Seven Words You Can Never Say On Television," while battling personal demons.

After a slump in the ‘80s, Carlin comes back with a vengeance, reaching new heights – and new audiences – with another reinvention that highlights his prescient political commentary and sharply honed observations about the state of America and the world. Following his death in 2008, fellow comics reflect on his enduring legacy.