Teddy leaves for college and the family has a hard time saying goodbye.

Teddy starts a rock band with Skylar and wrote a mean song about Spencer. Meanwhile, Gabe and PJ are tired of sharing the same room, so Gabe sleeps in an extra room in Mrs. Dabney's house. Amy uses the free day care at a gym to go to a spa down the street.

The Duncan family goes on a trip to Hawaii in celebration of Bob and Amy's 20th wedding anniversary. After wandering onto sacred ground, Amy gets the entire family cursed, but refuses to believe it, until she is trapped in an elevator with a claustrophobic woman. Soon after, Teddy gets knocked out during her surfing lesson; PJ and Gabe's aerial tour pilot falls asleep during the flight; Bob gets knocked out with a golf ball, and Charlie goes missing. Meanwhile, Bob faces continuous hour-long timeshare seminars.

Teddy asks Victor to prep for her SATs not realizing how demanding a teacher he is. Amy makes Bob sleep with Gabe as his snoring keeps Toby awake. PJ reads The Littlest Unicorn to Charlie and gets obsessed with the story.

When Spencer is accepted at a Boston college, Teddy learns how hard a long distance relationship can be. Amy starts a Mommy Blog. Bob accidentally released termites into the house.

Teddy takes Charlie to see Santa Claus, but he takes a break just when it's Charlie's turn. Amy and Grandma Linda discover they are performing the same song at the family talent show.

Bob's father Frank (Alan Rachins) comes over for Thanksgiving and begins a romance with the newly divorced Mrs. Dabney, much to Bob and Gabe's dismay. PJ tries to trick Amy about cooking the turkey. Teddy and Ivy attempt to wait in line for a new gadget.

PJ video tapes Charlie when she is being funny and puts the videos on the internet. Charlie becomes an over night super star getting tons of hits from the videos. When Amy and Bob find out, they don't like how Charlie is popular over the internet and they force PJ to take the videos down. After that, Charlie's fans get mad.

Using a fake phone call app, Teddy and Ivy trick their moms into allowing each other to go to a senior party. Their plan backfires when the moms find out and set out to track the girls down. Meanwhile, PJ fills in for Bob's day at work (exterminating rats), and Charlie tries to get Gabe to play baby with her.

After learning the big cheer competition will be held in Hawaii, Teddy decides to join Kelsey on the cheerleading squad; Teddy bombs her cheer tryout and has to beg the coach to give her another chance; Amy asks Gabe and PJ to take Toby to park.

The Duncans go on a family road trip to a ski resort in the mountains. While on the ski trip, Teddy meets a psychic who tells her that she will meet her true love during the vacation. She meets two guys, and her ex-boyfriend, Spencer. What will happen next?

Amy goes all out for Charlie’s birthday.Teddy goes to work at Bob’s extermination business. Gabe is sent home from school for accidentally getting in a fight.

Bob and Amy try to potty train Charlie but when she flushes her toys down the toilet, Bob must fix the plumbing. Unfortunately, Bob cracks a pipe and water sprays him and the nearby fuse box, resulting in a blackout. So, to finish their video game, PJ and Gabe run a cable from Mrs. Dabney's fuse box to power the TV set, eventually giving her house a blackout. Meanwhile, Teddy helps Ivy prepare for her first online chat with Raymond Blues (Daniel Curtis Lee), a guy she likes.

PJ meets a girl who has an unexpected link to Bob. Emmett is upset that PJ isn't prioritising him. Gabe is bullied by a girl at school.

Ten years in the future, 14 year-old Charlie watches a video diary that Teddy made about a fight she had with Gabe, in hopes that it will guide her through her fight with an 11 year-old Toby.

Beau and Teddy and Bob and Amy go on dinner dinner dates, while PJ is in charge of Gabe, Charlie, and Toby.

The Duncan family (except Teddy) compete in a bowling challenge against some family that beats them in bowling 5 years in a row

After Teddy uncovers the reason why Amy and her younger sister Jamie drifted apart, she and Charlie quickly devise a plan to convince Amy that it's time to make things right with her sister. Meanwhile, Gabe and Jake sell a photo of Toby and are in hot water when a local grocery store winds up using it.

Teddy uses Gabe and his friend Jake (Tucker Albrizzi) to go see a PG-13-rated movie so she can use it to win an internship at a news station. Meanwhile, Amy buys a pair of heels that cost $400 to go out to a party with and plans on returning them. She puts them away in until Charlie gets a hold of them and ruins the shoes. PJ tries to make amends with a kindergarten classmate after cutting the boy's ponytail.

The Duncans welcome their fifth baby in this one hour episode.

Teddy loses a mom's earring while babysitting. Meanwhile, Bob thinks he's won the lottery when Gabe gives him a fake winning ticket.

Amy uses her maiden name to work as a nurse at Gabes' school so he won't be embarrassed. Teddy and Vonnie team-up for a school project. PJ and Emmett start a baby-sitting service.

Gabe tricks Amy and Bob into getting him a new bike.

Still thinking that they are cursed, Amy encounters plumeria numerous times and gets severe allergic reactions. Teddy finally finds Charlie seeing her playing with a group of other children. Bob asks Teddy to pretend to be Amy for the time-share seminar. After making a promise to God during his and PJ's near-death experience on an aerial tour, Gabe coaches PJ to face his fears.

Teddy needs money for a new cell phone and gets a job as the neighborhood dog walker, but the job is less than glamorous. After walking in PJ's job Kwikki Chikki, PJ gets jealous when his boss gives Teddy a job as the Kwikki Chikki spokesmodel. Teddy then comes up with a plan to get herself fired in order to give her brother the spotlight he deserves. Meanwhile, Amy sings a song with Charlie at her daycare which gets very competitive with the other mothers, while Gabe uses a mouse to play a trick on Bob.

Ivy tricks Teddy into joining her family trip to Las Vegas. Gabe is secretly playing league baseball because he doesn't want his mother to embarrass him. Bert and Mrs. Dobbs announce their marriage and want to have the wedding at the Duncan house.

Charlie turns 2 years old.

Teddy throws a sleepover at PJ's apartment to forget about her anniversary with Spencer, while PJ and Emmett take care of their neighbor's pet rats while he's away. After Verne quits working for Bob to start his extermination business, Bob hires a young man named Beau (Luke Benward), as a replacement. Amy and Ms. Dabney use Gabe and Lauren to trick each other to do their chores but tables turn when Gabe and Lauren find out.

Teddy and PJ throw a house party while Bob and Amy are on a romantic date. Meanwhile, Amy forces Gabe to accompany Jo to cotillion classes.

Teddy and Amy compete writing a children's story to get published. While doing deliveries, PJ gives advice to a newlywed couple. Bob does career day at Gabe's class.

Teddy and Skyler compete against PJ, Spencer and Emmett in the annual battle of the bands competition at the mall. Teddy then finds out that Skyler and PJ are dating and neither of them want to do the competition any more. Meanwhile, Bob asks Gabe to take a gift back to a rich boy in his class. When Bob goes to the boy's house to return Gabe's gift, he goes back on his word and befriends the boy's father. Also, Amy takes credit for a painting done by Charlie after her art teacher says she has no real talent and that Charlie's painting is a work of art.

Teddy babysits Charlie while also attending a larping party with Evan (Matt Prokop), her new crush. After being poked in the eye by Charlie, Amy continues to fake being hurt to stay in the hospital longer. Bob and PJ must re-edit a video of Bob winning an exterminator award after forgetting to thank Amy in his speech.

Teddy suspects that someone at school is out to get her. Amy and Bob suspect that Deedee Dooley is teaching Charlie bad behavior Gabe tries to prevent his report card from being mailed home.

Teddy and P.J. hatch a plan to keep Bob from tearing down their cherished childhood tree house.

After accidentally breaking the one and only record made by Bob's old band, PJ gets the Bob Duncan Experience back together. PJ also learns the real reason why the band broke up. Meanwhile, Emmett proves to Teddy that she had promised to be his date to the Homecoming Dance in elementary school, so Teddy tries to hook him up with Alicia (Kiersey Clemons), the new girl in school. Gabe and his friend Leo (Rico Rodriguez) make a lemonade stand, but split up and compete for business after a falling-out over the profits.

Bob confiscates Teddy's cell phone when she exceeds her texting limit. Bob demands that she must pay the bill; Teddy is forced to get a job at Otto's Grotto, dressed as an octopus. Her job is a complete nightmare when it comes to dealing with children who are out of control. Meanwhile, PJ uses Charlie as a girl magnet, but his plan backfires when his new girlfriend, Kayla (Skyler Day), only seems to be interested in Charlie rather than PJ. Elsewhere, Amy is obsessed with trying to beat Gabe at video game tennis.

It's been a while since Amy and Bob have been on a date, so Teddy encourages them to go to dinner while the kids babysit Charlie. When PJ takes Charlie to the park, he accidentally swaps strollers and babies with a cute girl, Emma.

Teddy goes with Bob to the exterminator convention in hopes of making him happy enough to buy her a car. Meanwhile, Gabe and Jake shoot a monster movie starring Charlie. Plus, PJ's friend from Kwikki Chikki University, Gravy, is allowed to stay in the Duncans' household. Gravy drives Amy crazy with his abnormal living habits.

Bob's mom visits to help with Toby, driving Amy crazy. Teddy and Spencer celebrate their tenth-month anniversary. Gabe and PJ find an old letter saying that money is buried in Mrs. Dabney's backyard, and start digging to find it.

Teddy tries to strike up a friendship her Uncle Mel after Bob refuses to tell her why he wants nothing to do with him. P.J. and Gabe plan to turn Charlie into a model behind Amy's back.

Bob and Amy attend the pest controllers annual dinner dance. Beau asks Teddy to the same event. Gabe scores tickets to the first showing of a hot new movie for an upcoming date.

Teddy takes her volleyball coach’s advice to be more aggressive a little too seriously. Bob finds solace at PJ’s new apartment, and Amy unknowingly builds Gabe’s model rocket science project.

With the new baby coming, Amy decide the family needs to move to a new house. Teddy and Spencer audition for better acting reenactment roles at Super Adventureland. With Gabe leaving the neighborhood, he and Mrs. Dabney pull the ultimate pranks on each other.

Amy convinces Mary Lou Wentz to throw her a baby shower, but the event turns bad when Charlie blurts out all the horrible things Amy said about her baby shower guests.

Gabe has a crush on Mrs. Dabney's granddaughter.

Starting from where the season 3 finale left off, the Duncans' house has been destroyed by termites and they must build a new one, with the help of The Muppets.

Amy reveals that she was Wammy the Ram, the mascot of Teddy's high school, and pressures her into trying out for the role too. Teddy tries to blow the audition but gets the role anyway, just in time for the big rivalry game. Meanwhile, PJ challenges his best friend Emmett to baby-race his nephew against Charlie.

A puzzled P.J. and Teddy cannot understand why their friends are angry with them, until the monthly cell phone bill arrives.

Teddy and her friends go Halloween caroling to raise money for the drama club. A neighborhood mom vows to get even with PJ and Gabe for not giving her son any trick-or-treat candy.

The family reminisces about the day Charlie was born.

Amy lets her temper get the best of her when Mr. Piper refuses to admit he was wrong. P.J. decides to have a man to man talk with Skyler's old beau. Charlie's first ballet lesson may be her last after Bob breaks one of the class rules.

Ivy's dad opens a weather-themed restaurant where Teddy and Ivy become waitresses. Gabe has a crush on a girl and Amy tries to show her Gabe's "soft" side. PJ and Emmett have a rematch on the baby race, this time on tricycles.

Teddy volunteers to drive Mrs. Dabney around to get more experience behind the wheel.

Gabe and PJ mistakenly believe something fishy is going on with their neighbor, Mrs. Dabney, so they investigate. Meanwhile, Teddy is annoyed that her best friend Ivy has become texting buddies with Amy.

Teddy decides to break up with Derek, but has a hard time doing so, due to him continually doing nice things for her. Meanwhile, Amy becomes Gabe's new hockey coach and hurts herself during a practice. PJ finds out that he is being paid less than minimum wage and gets advice from Bob about what he should do, until PJ gets fired for going on strike with the other Kwikki Chikki staff.

Teddy, Amy and Charlie plan a trip to Chicago to visit their rich great-aunt Nell, where they are instead mistaken for the Duncan Sisters, a famous hip-hop dance duo and are taken to the dance studio of "Shake It Up, Chicago". Amy pretends that she, Teddy and Charlie are sisters in order to accomplish her dreams of being on TV, but since they do not know how to dance, they enlist the help of dancers CeCe Jones (Bella Thorne) and Rocky Blue (Zendaya). Back at home, Gabe and PJ hold a yard sale in hopes of raising money while cleaning out the attic, but wind up selling a cat cookie jar with $500 in it to Mrs. Dabney; Bob is obsessed with a TV show, Higgins and Zork.

Teddy becomes nervous when she has to kiss Spencer at her job at Super Adventure Land. When they kiss, Teddy begins to have feelings for Spencer again. PJ learns that Bob mistakenly wrote his name wrong on his birth certificate. Gabe has a hard time finding a birthday gift for PJ.

With the end of Amy’s maternity leave, Teddy's new babysitting duties conflict with her prep for a big school debate and things go awry when Gabe and PJ are assigned to watch Charlie.

Teddy applies for a job at a trendy teen clothing store where Spencer works. Teddy’s main reason for applying is that she wants a discount on new clothes for her upcoming school photo, however in order to get the job and fit in she needs to get a tan. However the self-tanner she applies goes awry when Charlie gets involved! Also in the episode Bob chases after PJ after he leaves for New York City when he finds out Skyler has moved there. And, Amy finds herself over-involved in Gabe’s life, inviting a girl over who she thinks he likes, but it’s the wrong girl!

Gabe's friends come over for a sleepover. Meanwhile, Teddy prepares for an important role in school play and Charlie refuses to sleep in her first "big girl" bed.