The family reminisces about the day Charlie was born.

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.

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.

When Bob has an accident, the kids must take care of him and Charlie while avoiding their mother.

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

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

Gabe gets his first crush on a girl named Kit, he then lies to her so they can have something in common. Meanwhile, Mrs. Dabney asks Teddy to catsit her cat Kaboodle and Teddy thinks the cat is sick because she just lying around. PJ uses Charlie to make more money on deliveries by saying he is watching her while his mom at the hospital, not mentioning she actually works there.

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

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.

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.

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.

Teddy struggles with applications for college and she dreams that she is in different times in the past. Gabe faces his old teacher. Bob gets an old rock look.

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.

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.

A backwards dance is approaching at Teddy's school. Teddy asks Spencer out for the big night and Ivy asks out Emmet. Teddy tries to get her first kiss from Spencer, but he's busy hanging out with Emmet. Meanwhile, Gabe tries to get his parents to argue at Open House because he has been lying to his teacher and saying that he could not complete his assignments because his parents are fighting.

The Duncan's are quick to blame P.J. after they return home to find all of their party decorations destroyed, but P.J. insists that Charlie is the real culprit.

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

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.

An unexpected visitor creates drama for Teddy on her 18th birthday.

When Teddy gets accepted into a college in New York City, she goes to New York, alongside P.J. P.J stays at a hot dog cart and gets back together with Skyler. Meanwhile Teddy misses her tour on the subway and meets up with Jessie and Zuri. When a blizzard traps Teddy and P.J in New York City, they decide to stay with Jessie and Zuri.

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.

Teddy moves on and looks for a new guy who looks just like Spencer.

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 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.

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