Elizabeth's been shopping at the flea market, and this time she's accidentally bought an entire flea circus. Everyone is thrilled with the new act, except for Stripes. Attracted to his fur coat, the fleas have him scratching day and night. His friends must choose between the flea circus and the comfort of their friend. In the end they make the right choice and bid farewell to the pesky fleas. / Eddy and the gang are all excited about his staying overnight at the carnival, until Stripes tells a ghost story around the fire and unnerves everyone (except Eddy.) That night strange noises convince the gang that the spirit of the Jittery Juggler is haunting the grounds. Eddy must show them that the only way to defeat your fears is to face them!

Eduardo gets fleas and they drive him mad with itchiness, but he accepts them as friends nonetheless. But Frankie and Herriman are determined to exterminate them and Bloo is determined to steal them! Can Eduardo protect his new flea friends?

A rambunctious Dog runs all over the beach, rolls in the sand, and contracts fleas. The cure is a corrective fleabelt that CatDog must wear in the middle of their body. Cat refuses to be seen in the unfashionable belt and haughtily gives it to Dog. However, when the fleas multiply out of control, a furious tug of war ensues as both Cat and Dog fight for the belt. Finally, Cat agrees to a flea bath even though he is deathly afraid of water.Dog wolfs down cat food at a focus group taste test creating the latest taste sensation -- CatDog food. CatDog are enlisted as the spokes-animals and mascots for CatDog Food. They become instant celebrities and their newfound fame goes to Cat's feline head.

Harry Schwartz, Tony Curtis' brother, suing for cost of his dog, vet bills, cremation fees and house cleaning because the French poodle bought from defendant died of Parvo three days after being purchased. / Suing for payment for a musical pig defendant knocked over with her purse.

Special guest star FLEA (aka Michael Balzary, the Australia-born bassist of the rock band The Red Hot Chili Peppers) joins the cast to introduce several comedy sketches. Sketches include: Mohican Master 2000 & Jazzercise With Wolves with Stiller's parody as Daniel Day Lewis and Odenkirk's parody as Kevin Costner; Die Hard 12: Die Hungry with Taylor Negron; The Let-Go Clinic with Tony Bobbins - a parody of Tony Robbins; Annoying Guy Meets Tattoo in a Bar with Herve Villechaize; Ask Manson; Skank; The Let-Go Clinic, Part 2; Flea beats Ben at basketball.

How reputable are flea-market vendors? Take a look at these findings.

Season 4, Episode 3: Sometimes you can pick up more than furniture at a flea market.

Sandy's Tree Dome is suffering from a serious flea infestation!

Can SpongeBob help Sandy with her flea infestation?

Isaac and Kristen Johnston go to a flea market; and Isaac makes a petticoat with Veronica Webb.