
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 and Clyde worry that they may be too old to still be playing Ace Savvy; Lincoln discovers that having a friend over means getting special privileges, and he takes advantage of that.

Lincoln and Clyde submit an Ace Savvy comic to a meet-the-creator contest, but are foiled by a surprising nemesis; when Lana brings home a new pet, whom the children adore, the four original Loud pets scheme to get rid of him.

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.