The family takes a vacation to a haveli (English: historical mansion), and quickly becomes convinced that it is haunted. It turns out that they are on a prank TV show. Dolly pretends to be sick and throws a house party while the rest of the family is gone. Roli Aunty blows their cover, so they make a deal, but her parents eventually find out.

Dolly is annoyed that her best friend Pam has become “texting buddies” with Himani, so she attempts to bond with Pam’s boring mother. Sunny and Rohan mistakenly believe that Roli aunty has killed her husband, so they go to Roli aunty's house to investigate.

Kaustubh, a mature 11-year-old boy, arrives in the neighborhood and convinces Dolly to be his date to a cousin's birthday party. When she learns that Ritesh has a new girlfriend, Sheena, Dolly says she is also dating but is caught out. Rohan and Popi add a third member to their band; when Nikki gets him sick, Avatar steps in to perform but takes his role too far.

Sunny tries to find a new room for himself after Bobby is moved into his room. The termites ultimately destroy the entire house and the Singhs move into a hotel. Rohan announces that he's dropped out of college, but wants to attend catering school.

Avatar shows Himani a rare species of termite which gets loose in the house. Himani starts contributing to Teen Today Blog under Dolly's name.

Dolly wants to ace a statistics test, and asks Saahil to coach her since he earned a perfect score, but his strict, demanding teaching methods soon make her regret this. Meanwhile, Avatar's snoring is keeping Bobby awake at night, so Himani makes him sleep with Sunny.

Avatar's aunt returns once again to celebrate his wedding anniversary, much to Himani's dismay. Things go awry when Himani and the aunt learn they are performing the same act at the talent show. Elsewhere, Avatar struggles to find the perfect gift for Himani.

Himani throws a party to entertain Nikki and Bobby, dressing in a kangaroo costume with a pouch for her two youngest children. Avatar puts a cape on over his work clothes and calls himself Super Bijlee Man, but Himani disapproves of his meager efforts. Meanwhile, Sunny is deceived by Roli Aunty into attending a ceremony in honor of her charitable work.

Sunny is just gaining popularity when Himani gets a part-time nursing job at his school. They agree to pretend not to know each other, and she uses her maiden name, Batra. Meanwhile, Rohan has to babysit Nikki and Bobby, and begins a babysitting service with Popi.

Ayaan goes to apologize after getting into an argument with Dolly, but instead gets advice from Avatar on how to handle a Singh woman as a "Ladkiology expert". Himani overhears and instructs Dolly how to handle the situation. In the end, Ayaan apologizes. Meanwhile, Sunny avoids chores by spending the weekend with his friend Shibu at Rohan's apartment.

Dolly's team is on a losing streak, so new team mom, Himani, hosts a team-bonding slumber party in the hopes that they will work together to win a game. Meanwhile, Sunny starts dating a new girl, Saniya; Avatar immediately becomes annoyed by her father because he is clingy and has horrible manners.

Himani returns to work at the end of her maternity leave and finds her boss is divorced and working as well. Himani has hallucinations of Nikki and Bobby. Sunny and Rohan watch over Nikki but she runs away. Meanwhile, Dolly attends the mock parliamentary session alongside Ravi; Bobby nearly causes them to lose due to his frequent crying, but they soothe him by singing their final presentation, which leads them to victory. Himani decides to become a stay-at-home mom, and Avatar child-proofs all the locks so Nikki cannot run away.

Avatar's aunt visits to help with Bobby, but drives Himani so crazy that she asks Dolly to keep the woman away. In a box of old things Roli Aunty gave them, Sunny and Rohan find an unmailed letter claiming money is buried in her backyard. They dig at the exact location mentioned, unwittingly excavating for her new hot tub. To pay her back they put green dye in the hot tub.

Nikki's birthday invitations may not have been mailed, and so Sunny and Rohan dress up as princesses in order to entertain her. Himani goes into labour and they hitchhike to the hospital on an ice-cream truck. On the way, Himani gives birth to their baby boy, Bobby Singh.

Dolly moves her study date with a cute boy, Ritesh, from the library to home because she has to help Avatar take care of Nikki while Himani returns to work. Avatar injures himself falling down the stairs, so Rohan must take him to the hospital where Himani works, leaving Dolly to watch Nikki.

Dolly discovers that she has an Narendra Tauji (English: uncle her father doesn't speak of); she visits him and they go to a cricket game, where she realizes why they never got along. Sunny and Rohan try to make money modeling Nikki for a baby-store ad.

Dolly flatters Himani as a "cool mom" so she can attend a midnight movie with Pam, but she pocket-dials Himani, who overhears that it was an act. Himani and Pam's mom get revenge by publicly embarrassing the girls. Rohan pocket-dials his intimidating lab partner Sandy, who overhears how stupid Rohan thinks he is. Sunny and Avatar assemble Sunny's new toy helicopter while Sunny is driven crazy by Nikki's new toy "Bak Bak Bandar".

Himani pressures Dolly to be in the school play, "Dinku the Donkey", and she gets the part despite trying to blow the audition; a baby basketball match is set between Popi's nephew and Nikki.

Roli Aunty agrees to bring her dog inside if Avatar cuts down a tree, but Dolly and Rohan stage a sit-in to save their childhood tree-house. Avatar wages war against his disobedient kids while Himani gives them her support.

Nikki sets off a shoplifting alarm at a drugstore, and she, Sunny, and Nikki are put in holding. Neeti, an awkward girl from Dolly's school, works there and aids their escape. Rohan and Popi create a jingle for an Avatar Bijlee commercial.

Dolly asks Ritesh to the school dance on a double date with Pam and Popi. The boys start a "dance-off" over Dolly, but end up bonding, leaving Dolly feeling left out. Sunny tries to get Himani and Avatar to fight at his PTA meeting to maintain his excuse for not doing homework.

Rohan delivers food for Kukkad Nukkad (a chicken restaurant) and falls for a customer, Richa, who he obsesses over, causing friction with Popi. Avatar used to date Richa's mom, which causes trouble with Himani. Dolly tries to help Sunny with a school bully, Guri, who is actually a girl with a crush on him.

Dolly cat-sits for Roli Aunty, whose sister enlists a cat therapist to cheer up the pet. Sunny tells a girl he likes that he's an only child living with his single mother (to have things in common with her) and enlists Dolly to help him maintain the facade when she shows up at their busy home.

Dolly tries to impress her Hindi teacher by bringing Nikki to class in costumes for a presentation, but Nikki vomits on the teacher and makes the class sick as well. Himani stands in for Avatar as Sunny's football coach, and they win their first game ever; the team hires her but her "have fun" approach doesn't work as well the next game. Meanwhile, Rohan takes Nikki to Nani ghar[HOME] and bonds with the Nani moms.

The kids throw a surprise anniversary dinner for their parents, but Nikki loses her blanket and won't stop crying. Chaos ensues as Rohan gets locked out of the house with Nikki inside. Meanwhile, Sunny takes Avatar and Himani to the movies, but Himani gets stuck watching "Robot No. 1", a movie she hates.

After agreeing to do a routine for the community talent show, Ritesh sees how bad a dancer Dolly is and fakes an injury. Popi abandons a ventriloquist act with Rohan to partner with Dolly, resulting in chaos at the show. Guri convinces Sunny she wants to help him run for class monitor, but instead smears him to bolster her own campaign.

Dolly worries about her relationship with Ritesh after Nikki bites his finger; later, Dolly discovers him with another girl, Maya; when he lies about it, she dumps him. Sunny tricks Rohan into an unfavorable contract for money to buy an old used car. To teach him a lesson, Himani, Avatar, and Rohan try to convince him that the car is haunted.

Sunny begins to like a girl at school and tries to convince her that he has a soft side. At the park, Rohan and Popi decide to have another baby race, this time using tricycles.