Riley becomes jealous when Lucas gets attention from another girl, and Maya is angry when Cory gives her a fail grade on a test, and argues that it is due to his shortcomings as a teacher.
Riley and Maya are anxious to begin eighth grade and have a new teacher that isn't Riley's father, and Maya and Farkle are caught cheating on a test and have to face the school honour board.
Riley, Maya, Lucas, Farkle, Zay, and Smackle start their freshmen year and quickly learn their place as smaller fish in a much bigger lake. Plus, Riley creates an online alter-ego, Jexica.
Starting seventh grade can be a challenge, but for Riley Matthews there's an added complication; her history teacher is also her dad! But with her best friend Maya at her side, along with friends Lucas and Farkle, they're ready to take on the world. When Maya leads a rebellion in class, Riley joins in much to Cory's dismay. Cory is sick of the kids texting during class so he confiscates their phones to teach them how to communicate face to face. And Riley becomes jealous when Missy starts flirting with Lucas, so she enlists Maya and Farkle's help to figure out how to flirt! Together they learn that growing up and taking on the world will be a big challenge...for everyone.