When Tyler and Avery are given a dog that talks, they agree on one thing: Stan's ability to speak must be kept a secret from everyone, even their parents.

After Tyler gets his learner's permit, he wants to drive alone due to his parents annoying him, and everyone wanting taking advantage of him. Chaos ensues when Stan crashes the car because he wanted to be like a person, and everyone thinks Tyler did it. Meanwhile, Ellen and Bennett relive the memories they shared with Tyler and Avery when they were kids and realize that they are all grown-up, so they start cherishing memories with Chloe. In flashbacks, it is revealed that Ellen and Bennett had an ugly run-in at the park when Avery and Tyler were much younger, however they do not remember this.

Avery and her best friend, Lindsay (Kayla Maisonet), are in desperate need for a replacement to be the school mascot to perform at the homecoming game. Stan convinces Avery to let him be the school mascot, but she is worried because the rival team always pulls horrible pranks on the mascots. Meanwhile, Ellen is beyond annoyed because the car always smells horribly bad, so she persuades Bennett into buying a new car.

After Tyler develops a crush on their new neighbor, Nikki Ortiz (Denyse Tontz), he invites her to walk their dogs together. Tyler enlists Stan to be his wing-man, and to Stan's dismay, he cannot stand Nikki's Pomeranian, Evita, due to her incessant barking. Meanwhile, Chloe asks Bennett to speak at Career Day about his job, but Bennett is shocked when Chloe believes he is a sock-ologist, a person who studies socks, instead of a psychologist.

Stan has been addicted to a game called Realm of the Tower, where he has made a new friend Kilgor (Kevin). When the game-players are gathering at the park, Stan asks Avery to pretend to be him so they can go and meet his gaming companions. Meanwhile, Chloe has been begging to get her ears pierced, but Ellen and Bennett refuse to take her, so she tricks Tyler into taking her much to Ellen's dismay.

It is the family's first Christmas together and Avery is prepping Tyler, Chloe, and Stan because Ellen has a reputation of giving horrible gifts. Meanwhile, Bennett and Ellen argue over whose Christmas traditions to follow.

Ellen has decided to get a pet of her own, a talking parrot, but the rest of the family is not very comfortable with it.

After overhearing Avery talk about Stan's secret, Karl Fink (the family's neighbor) starts spying on Stan and the rest of the family to find out his secret. To make sure he doesn't find out, Avery decides to enter Tyler into a math competition against Karl after it is revealed Tyler is a math genius. The plan to divert Karl from Stan's actual secret works, and he eventually believes that there was no secret and that Avery tried to get back at him for a prank he pulled earlier. Meanwhile, Bennett tries to get Chloe to stop wearing her magician's outfit to school.

Avery, Tyler, & Chloe discover that Stan isn't talking, so they must figure out why without their parents discovering the secret.

When Stan is in charge of watching Chloe, she goes missing!

The family trains Stan to be a guard dog.

Avery makes the cheerleading squad

Tyler enters the same art competition as Avery.

Avery has a huge crush on a boy named Dustin Pitt, and in order to spend time with him she enlists the help of Tyler, who in turn wants her to help him spend time with Nikki. Avery and Dustin end up watching a movie together and later with Stan's help, Avery tells Dustin she likes him. Dustin likes her back and asks her out. Meanwhile, Chloe and Stan play chess (Chloe's version of chess) while Tyler has a mustache glued to his face.

Tyler gets a summer job on a food truck and decides he would rather have his own truck than finish school.

Avery's boyfriend (Dustin) dumps her and Stan tells her that she should go to her mother for help. Tyler accidentally crashes the food truck when he took out the brick that holds it.

Avery, Tyler and Chloe react to the news, when Stan overhears a conversation between Ellen and Bennett about a possible new addition to the family. Bennett has the chance to become a public speaker and be rich, but the children ruin it all thinking they will have a new baby.

After Grandma hears Stan talking while babysitting the children, she begins to think that she is going crazy, prompting the children to decide whether or not they should share Stan’s secret with Grandma.

To help land an internship with a City Official, Avery agrees to a throw party at her house for the official’s demanding daughter, while keeping it a secret from her parents. Meanwhile, Bennett and Ellen attend a sleepover at the park with Chloe and her Healthy Muffins Troop.

Bennett and Ellen discover Avery's secret online 'Buddy Bop' account. When they try to shut Avery's account down, they accidentally post an embarrassing video. Meanwhile, Stan must face his past and do the tango with Chloe, to win an animal talent show. In the end, Stan loses the talent show to a talking dog.

Stan's former owner, Ian, arrives from Spokane, Washington, to reclaim Stan. He tells Stan he found his original family and they can all talk too. So Stan has to choose between his old family and his new family.