Leonard, Sheldon and Wolowitz receive a distressing surprise after their Air Force project; Amy is asked to be a visiting researcher during the summer.
Phoebe's world view is shattered when she learns how "Old Yeller" really ends; Monica becomes jealous when Richard begins going out with Joey and Chandler.
Chandler and Ross run into two bullies at the coffee shop; Monica is forced to get a job at a 50's theme restaurant after losing her cash in the stock market.
Phoebe catches chicken pox just as her old flame arrives in town on leave from the Navy; Joey gets a job at Chandler's office but decides to play it as a role.
Gemma hosts a fundraiser for a new school pool; Trina and the other teachers protest; Dave finally gets Calvin to commit to physical therapy for his knee.
Dave and Calvin struggle to get Gemma and Tina to make up; Marty struggles with an illness, leaving Malcolm to go to a baby class with Courtney in his place.
Wally the Walrus searches all over Adventure Bay for Cap'n Turbot; Helga Humdinger's Hummy Gummy treats causes Mayor Humdinger to be jealous and steal them all.
Rubble and Wild Cat rescue animals from a giant runaway ball of yarn; Skye and Rory rescue a painter hanging from a scaffold; Marshall and Leo rescue animals.
Chase's cat allergies lead him to the desert, and he's trapped with the Ruff-Ruff Pack; the Ruff-Ruff Pack take a bus on a wild jump and must be rescued.
Peppa's family has a river day; Peppa and George play with a flashlight; George feels left out; Peppa's family star gazes; Daddy gets a birthday surprise.
The Pups try to get Mr. Porter's Mini-Donut Maker back from the Ruff-Ruff Pack; the Ruff-Ruff Pack takes over Humdinger's lair and runs off with his kitties.
Ms. Marjorie is paddleboarding when she mysteriously disappears; Mayor Humdinger can't find his kitties, so he runs to the Safety and Rescue Pups for help.
A digging machine goes out-of-control and takes Uncle Otis on a wild ride; Digi and Tal try to help Mayor Humdinger but leave the Mayor covered in jam.
A new Super Squirrely Whirly movie is playing at the drive-in theater; it's Auntie Day but the pups must finish building their present for Auntie Crane in time.
Plankton poses as a wish-granting genie in order to get the secret formula; Mr. Krabs creates a new Krabby soup that attracts a group of hippies move in.
SpongeBob thinks a convict who escaped is his new driving teacher; after Mr. Krabs send him looking for a toy, SpongeBob gets lost in the lost and found.
Plankton and Karen take dance lessons and quickly become the top of the class; equipped with a magical spell book, SpongeBob cooks up chaos in the kitchen.
When a new secret formula for Krabby Patties is revealed, it proves disastrous for Bikini Bottom; Mr. Krabs and Plankton have to attend boating school classes.
Monica uses her free time after breaking up with Richard to make jam and considers insemination through a sperm bank; Phoebe dates a man who stalks her twin.
Janice questions the group as to whether any of them have ever slept together in the past, leading the collective of companions to reflect upon a period of time
Monica buys a new bed from Janice's soon-to-be-ex-husband, "The Mattress King," but the wrong one is delivered; Rachel attempts to have Ross bond with her dad.
Chandler is about to buy Janice an expensive gift until he learns she still has feelings for her ex-husband; the gang pokes ugly naked guy to see if he's alive.
Howard and Sheldon bond while traveling towards the desert to launch a model rocket; Leonard feels slighted when his mother makes Penny her new best friend.
The gang plays a game of touch football on Thanksgiving; Joey and Chandler argue over who gets to date a model; sibling rivalry dominates Monica and Ross.
A drunken Chandler fools around with one of Joey's sisters, but can't remember which one; Ross is suspicious about Rachel's job offer from a good-looking guy.
Ross becomes jealous when he thinks he catches Rachel's new coworker whispering sweet nothings in her ear; Joey attempts to teach a hard dance routine.
Monica's willpower is tested when she runs into Richard at the video store; Joey agrees to read "Little Women," while Rachel agrees to read "The Shining."
Ross seeks solace at a party after a bitter fight with Rachel and ends up in the arms of another woman; Phoebe's date needs an interpreter to communicate