
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.
When Lola gets sick and is unable to compete in a pageant, Lincoln coaches Lana to take her place; thinking it will be easy, Lincoln and Clyde decide to take on the task of baby-sitting Lily.
Luan is locked in a cell in the basement; Mom goes undercover as a student at the high school and becomes best friends with Leni, Luna and Luan.
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.
Lisa gets invited to work at an institute and get away from her crazy family; Lori and Bobby worry that long-distance dating is causing them to lose their connection.