Riley and Maya are anxious to begin eighth grade and have a new teacher, that isn't Riley's father. Meanwhile, Mrs. Svorski asks Topanga to take over at the bakery.
Riley and Lucas' classmates are curious as to what's going on with their relationship, which ultimately confuses them more than ever before.
When Lucas' old friend from Texas comes to New York, Lucas begins to wonder if New York had really changed him, and he starts to keep secrets from Riley.
Cory, Topanga, Shawn, Riley and Maya travel to Philadelphia to dig up a time capsule that Cory, Topanga and Shawn buried 15 years ago which prompts the kids decide to create and bury one of their own.
When Riley and Maya get into a fight, Cory enlists the help of his brother, Eric, to be a mediator.
Riley tells a lie so she and Maya can attend a party and must deal with the guilt of sneaking around her parents.
When the entire class gets detention, the class divides and chaos ensues. Meanwhile, Auggie's friend Ava attempts to be nicer when she thinks she's losing him to another girl.
Cory and Shawn take the girls out for a fun night, but just as Maya feels closer to Shawn, someone from his past comes back into his life and risks ruining everything.
Uncle Eric is recruited to run for the Senate, but learns it was only because they expected him to lose. Riley and her friends rally together to help his campaign.
A new teacher is hired and uses non-traditional ways of learning to engage the students, and the principal does not agree. Cory defends the teacher, which ultimately gets him in trouble too.
It’s Riley’s turn to take the class fish home for the weekend, but it dies as soon as she gets it. Auggie suspects foul play.
The kids aren’t satisfied with what they’ve been voted “Most Likely” for in the school yearbook, and take matters into their own hands to change it.
Riley is asked to the semi-formal dance by a classmate named Charlie and is torn whether to go with him or Lucas. Meanwhile, Cory’s brother Eric is paid a visit from an old friend.
When art and music are threatened to be cut from school, the kids have to find a creative way to convince the school board to show their value.
Riley, Maya and Lucas emphasize the beauty of being unique as they rally around their friend Farkle Minkus, who may be on the autism spectrum. Meanwhile, his friendship with another student, Smackle, grows fonder.
When Riley comes to the realization that her parents, Cory and Topanga, are making a positive impact in the world, she questions the impact she's making to the world.
After Maya hurts Riley's feelings, the group learns that Riley is overly sensitive because another classmate is making fun of her. Riley's friends encourage her to like herself for who she is.
It’s time for the annual cheerleading tryouts, and Riley is determined to finally make the squad.
Riley, Maya, and Farkle head to Texas with Lucas, who has been entered in the bull-riding competition at the rodeo in his hometown.
Riley, Maya, and Lucas try to figure out their feelings while they are in Texas together
Riley, Maya, and Lucas deal with the aftermath of what happened in Texas.
When Farkle’s dad makes a bad investment, Farkle becomes worried about what that might mean for his family.
Riley decides to redecorate the bay window; Maya is offended and hurt that Riley would violate their sacred space.
With middle school graduation around the corner, Riley, Maya, Lucas and Farkle work together to determine what kind of legacy they want to leave at John Quincy Adams.