Radioactive Man is fighting crime with his dog until Dr. Nick walks in. It's really a commercial for a pet show, and Nick's hosting it. Bart Simpson wants to take Santa's Little Helper there, and when he does, there's a huge line full of Springfield's citizens and their pets. Before Bart goes on, it shows acts with characters such as Gil or Milhouse Van Houten doing acts with their pets (Milhouse has a muskrat, and Gil has a frog). Bart finally goes on with Santa's Little Helper doing impersonations, but a huge animal brawl breaks out. Santa's Little Helper escapes and goes to a nearby Krusty Burger, where Krusty the Clown is making a new commercial. As he's doing the commercial live, Santa's Little Helper comes in and bites Krusty's butt, causing him to yell loudly. Bart soon finds his do