THE JACK AND TRIUMPH SHOW stars Triumph the Insult Comic Dog (voiced by Robert Smigel) as the constant companion of former child star Jack (Jack McBrayer), years after the two starred in a Lassie-inspired drama called Triumph's Boy. After the show ended, Jack fell victim to Hollywood temptations such as drugs and alcohol, and his parents squandered his earnings, so he's taken in by his TV mom, June (June Squibb), who introduces him to a normal life. Unbeknownst to Jack, she dumps Triumph on the side of a road half a continent away to get the insult-hurling sidekick out of Jack's life, but 15 years later, he shows up on their doorstep again, determined to get Jack back into show business.