"Heckler!" chronicles the odyssey of comedian Bobby Kelton, who morphed from a shy kid to a comedy star on "The Tonight Show." Bobby shares stories of hecklers and stage-rushers, along with tales from backstage at "The Tonight Show," touring with Tom Jones, befriending Mickey Mantle, and causing havoc with Larry David. "Heckler!" is a funny and poignant look at a comedian's journey and the challenges of making people laugh for a living.