Leonard's newly-divorced parents and Sheldon's religious mother arrive in town; Wolowitz and Koothrappali are convinced that the government is out to get them.
In the aftermath of Sheldon's mother having an intimate evening with Leonard's father, the gang is left to deal with an uncomfortable morning the next day.
Ross has trouble with his ex-wife, who insists on leaving Ross out of their child's life; Monica goes on a manic cleaning spree to impress her parents.
Phoebe gets a big settlement after finding a severed thumb in her soda; Chandler resumes smoking; Monica is bored with her boyfriend, who her friends love.
The girls break out binoculars to peek at their neighbor across the street, a former White House advisor; Joey and Chandler take Ross to a hockey game.
When Mitchell struggles to move on from his old life, Gloria steps in to help him say goodbye; Haley, Luke and Alex decide to host a party at the Dunphy house.
Phil tries to help Luke prove he is responsible enough for a bicycle, but a hot neighbor causes trouble; Mitchell and Cameron take Lily to Mommy and Me class.
Action News Team tries to prove kangaroo mascot's innocence; Lincoln finds ways to break a family rule about hand-me-downs so he can get Lori's old mattress.
Halmoni feels helpless about technology, so she becomes a master hacker; Lily must retrieve a book from the dreaded library, a maze of unknown terrors.
Buster Moon and his friends prepare for their new show in the entertainment capital of the world, but they must convince a reclusive rock star to join them.
SpongeBob obtains a magician's wand and causes mayhem; on Friday the 13th, Mr. Krabs' extreme superstitions become a disruption for everyone around him.
SpongeBob and Patrick create their own zoo made entirely of bubbles; the Krusty Krab goes under emergency quarantine, but no one knows who carries the illness.
SpongeBob visits his old pal Bubble Buddy's hometown, Bubbletown; Sandy invites Karen and Mrs. Puff out for a night on the town to blow off some steam.
Joey tricks Monica into posing as his new gal pal to attract an ex-girlfriend; Chandler has a difficult time breaking up with his annoying girlfriend, Janice.
Joey gets his big opening when he's hired to be Al Pacino's stunt butt; Chandler has second thoughts about a married woman who wants him to be her sex toy.
A major blackout leaves New York without power and Chandler stuck in an ATM vestibule with a Victoria's Secret model whom he desperately tries to impress.
The guys experience tension while working nonstop to complete the task that was delegated to them by the government; Amy and Penny attend a house party.
Sheldon agrees to Amy's proposal for them to try out a "cohabitation experiment" after her apartment is flooded; Howard and Bernadette's baby's gender.
Amy lies to Sheldon about repairs being done to her apartment in an effort to keep her living situation from changing; Penny secretly moves Leonard's items.
Chandler has mixed feelings when his mom, a romance novelist, comes to New York to visit; meanwhile, Monica and Phoebe compete for the "attention" of Coma Guy.
Ross refuses to find out the sex of his baby until it's born; Chandler and Joey go shopping for a new kitchen table and come home with a Foozball table.
After Chandler accidentally sees Rachel topless after a shower, she demands to see him naked in return; no one can stand Phoebe's irritating new boyfriend.
Monica's gourmet meal is wasted on a stoned food critic that will eat anything; Ross has a date with a beautiful colleague who is interested in his monkey.
Jay and Gloria invite everyone over for barbecue and football, but an earlier incident at school and the utterance of an unflattering label make things awkward.
The whole family supports Manny in his fencing ambitions, but Jay's enthusiasm triggers an old wound for Mitchell; Phil tries to find Luke's hidden talents.