
Things are crowded in the Loud household, with 11 children -- 10 girls and one boy -- causing craziness in the house. As the only boy, 11-year-old Lincoln is in the middle of all of the chaos. Whether his sisters are giving him unwanted makeovers or he's racing them to the couch to gain control of the TV, Lincoln is often getting involved in antics with his siblings. Lincoln's best friend Clyde, who happens to be an only child, is jealous of Lincoln's large family and is always willing to play his part in the schemes. Clyde has a crush on Lori, Lincoln's oldest sister and self-proclaimed boss, who is dating Bobby, who holds many jobs -- including lifeguard and mall security guard -- even though he's not very smart.

Lincoln invites Clyde to a sleepover, but gets jealous when Clyde wants to spend time with his sisters; Lincoln eavesdrops on his parents and thinks they have decided to get rid of their children.

Torn between her work friends and her school friends, Leni tries to bring everyone together; when Lincoln and Clyde go to tour the middle school, Lynn gives them some questionable advice.

When Stella's music box disappears at school, the gang immediately suspects a student urban legend known as the Rat Beast; after a night of zombie movies, Clyde and Lincoln find an empty Loud house and assume it's a zombie apocalypse.

The boys struggle with whether to attend Liam's barn sleepover or Girl Jordan's awesome pool party; the kids worry that Leni is too weak, and they try to teach her how to be more aggressive.