David Letterman passes Sarah Silverman the Stupid Pet Tricks torch and shares with her a very special Top Ten List. Also, Sarah meets the SPT staff and smooths out some unexpected intra-office issues. On stage, Sarah welcomes a former rodeo clown and his shockingly agile best friend, a goat who can walk on two legs, a party animal that really knows how to get down, and a dog that's up there with the smartest animals in the world. But only one will take home the title of Stupidest Pet Trick of the Week!

Sarah tries to take the high road as Jack McBrayer drops in on the SPT Writers Room to brag about his new famous piece of clothing. Also, Sarah welcomes a world record-seeking dog, an overexcited horse, and a juggling duck.

After learning that the show is over-budget, Sarah is forced to make some layoffs and Judd Apatow fights for his job. Meanwhile, Sarah hangs out with a ninja warrior hamster, a chill chameleon, a rabbit athlete, and a skateboarding bulldog.

Animal Expert Ranger Jim stops by the show to teach Sarah about animal safety...or tries to. And back in the SPT Offices, Sarah gets creative with an overcrowded bathroom situation. On stage, Sarah welcomes a one-of-a-kind dog with a flair for hats, a rockstar duck, a chivalrous horse with a devilish sense of humor, and a pack of pint-sized poodles ready for the spotlight. But of course, there can only be one Stupidest Pet Trick of the Week!

Emmy-Winning actor Jon Hamm drops in with his pet turtle to show Sarah their impressive culinary skills. Shenanigans ensue at the SPT offices, when one of the writers goes off-the-rails with their gluten free diet, driving everyone to the point of no return. On stage, Sarah is introduced to a dog who could play for the Harlem Globetrotters, a pig who is incredibly good at sitting, staying, and rolling over, and an animal from down under who can pack a punch! But, as always... only one will take home the title of Stupidest Pet Trick of the Week!