List of Run of the Mills episodes

Season 1

 * 1) First Day - The kids (including Sarah and Aiden's kids and except for the older children) go on their first day of school; Sheila, Spencer and Steven go to college and meet with their roommates; Samuel III is forced to work at a third grade teacher at an elementary school.
 * 2) The New Intern - Alyson's Scottish-American high school intern, Niamh Vass befriends Susan, but Stephanie is jealous.
 * 3) School Activities - Susan tries out for cheerleading, Stephanie tries out for dancing, Sebastian tries out for the choir, and Shiloh tries out for the school band.
 * 4) Homecoming - Stephanie and Susan go to their first time being at their homecoming at their school; Meanwhile, Sheila's roommate, Eugenia takes her obsession with a dom-com too seriously.
 * 5) Milloween - Being too old for trick-or-treating, Sebastian takes part of passing out candy to the trick-or-treaters; Sheila goes to a sorority Halloween party to get drunk; Samuel III throws a Halloween party at the elementary school he teaches in; Shiloh, Sean, Simon, Sadie, Shane and Sophia go trick-or-treating; Sarah and Aiden take their children trick-or-treating; Stuart helps Yuri with an idea: both passing out candy and scaring trick-or-treaters just like most villains or monsters do, with the former commonly found in horror flicks.
 * 6) Coming Out of the Closet - After her friends finally realized that she likes both genders, Stephanie admits that she is bisexual. Meanwhile, Zara is 1 week pregnant, surprising Jojo, Day'Marr and Steven.
 * 7) R-Rated - Steven decided to watch a R-rated movie with "you-know-what" and violence so Zara must come without Jojo and Day'Marr, who had a babysitter coming.
 * 8) Millsgiving - It's Thanksgiving, and the older kids and their relatives come over to the Mills household.
 * 9) The Doctor's Disappointment - Not having school and being absent for a day, Susan gets a doctor's appointment due to her OCD problem.
 * 10) Church - Sarah and Aiden take Teagan, Kevin and Clover to church.
 * 11) The Drinking Problem - Steven shoplifts root beer despite being 18 years old of age, only to be grounded for one day.
 * 12) Here's Donny! - Stephanie tried out for a school play known as The Shunning as the role for Wanda Terrence.
 * 13) New Medicine - Alyson gives Susan, Sebastian, Simon and Sadie medicine every morning and every night.
 * 14) Christmastime is Here - The Mills relatives, including the older children and their love interests and children, come to visit on Christmas.
 * 15) Galentine's Day - Susan gains a crush on Niamh during Valentine's Day; Stuart and Yuri remember the times about their Valentine's Day memories; Alyson and Samuel III celebrate their anniversary.
 * 16) Aunt Pearl - Alyson's sister, Pearl comes over to the Mills household for a visit.
 * 17) The Craving - Alyson suffers from horrific cravings while pregnant, leading her to become upset even more. Meanwhile, Sarah discovers the memories of being pregnant.
 * 18) Spring Heartbreak - It's Spring  Break and Alyson and Samuel, Jr. go to a retirement home to visit Grandma Hillary and discovers the memories of how Alyson feels like being the sister of eleven children. This episode contains flashback from 1968 through 2003.
 * 19) Who's Got Talent? - Sebastian tries out for the school's talent show known as singing.
 * 20) The 20th Child - In the season finale, Alyson finally gives birth to Sawyer Declan Mills, the 20th child.