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) 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.
 * 3) Drive, Baby, Drive - Stephanie learns how to drive for the first time; Sebastian gains a crush on an African-American classmate named Peggy Driscoll.
 * 4) You're a Teen, Now - When Shiloh turns 13, she becomes addicted to a mobile phone; Stephanie comes out of the closet as a bisexual for the first time.
 * 5) 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 teem drama too seriously.
 * 6) Milloween: Part 1 - Samuel III throws a Halloween party at the elementary school he teaches in; Sebastian takes his younger siblings trick-or-treating while 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.
 * 7) Milloween: Part 2 - Sheila is invited to Eugenia's sorority Halloween party; Susan is invited to Odeya's Halloween party; being too old for trick-or-treating, Stephanie takes part of passing out candy to the trick-or-treaters.
 * 8) Eighteen Candles - On Susan's 18th birthday, she wonders what it was like to be an adult, so she does anything on what 18-year-olds. When she brought an "over-18" magazine her mother brought for her, she might fear that she will be embarrassed; Shiloh finds out that she is a teen magazine collector as she collects teen magazines.
 * 9) Millsgiving - It's Thanksgiving, and the older kids and their relatives come over to the Mills household.
 * 10) Whatever Happened to Joy-Anna? (1-hour special) - Alyson tells the story about her youngest sister and Lawrence's younger twin sister as her origins are revealed: from childhood, to marrying Felix one year after she graduated college, to her death. (SPOILER: On September 10, 2016, Joy-Anna died from not only her sleep, but seizures due to epilepsy.)
 * 11) The Doctor's Disappointment - After being sent home from school on her 6th period, Susan gets a doctor's appointment due to her OCD problem.
 * 12) Christmastime is Here - The Mills relatives, including the older children and their love interests and children, come to visit on Christmas.
 * 13) Church - Sarah and Aiden take Teagan, Kevin and Clover to church. Meanwhile, Stephanie gets on her period, which shocks her siblings and her parents.
 * 14) The Drinking Problem - Sheila discovers that due to being 21 years of age, she finds alcohol as an addiction.
 * 15) Steady as He Goes - When giving advice to her "sis", Janet, Susan learns how to "be steady with the boys".
 * 16) Here's Donny! - Stephanie tried out for a school play known as The Shunning as the role for Wanda Terrence.
 * 17) The 20th Child - Alyson finally gives birth to Sawyer Declan Mills, the 20th child.
 * 18) Graduation Day - In the season finale, Susan graduates high school while Sheila graduates college.
 * 19) Summer Bummer: Part 1 - In the summertime, Stephanie is forced to work as a fast food restaurant while Sebastian gets a job at the arcade; Shiloh goes to the shopping mall with her family.
 * 20) Summer Bummer: Part 2 - Susan moves to Los Angeles.

Season 2

 * 1) Alpha Beta Omega - After moving to Los Angeles, Susan is visited by a group of sorority girls called the "Alpha Beta Omega" for the first time.
 * 2) When Alyson Met Joy-Anna - Alyson begins hallucinating as she starts to see the "ghost" of Joy-Anna everywhere, but no one seems to see her since she's a hallucination.
 * 3) Just Take One - Shiloh is forced to leave a bowl of candy at the front porch at the Mills household on Halloween, causing the trick-or-treaters to just take one. After someone takes more than one piece of candy, it's up to Shiloh to stop the trick-or-treaters; Stephanie invites everyone to a Halloween party, but a blackout ruins it. When she tells everyone about an urban legend of the ghost of the house's original owner, an obnoxious classmate of hers pulls a prank on her and her friends, which went wrong.
 * 4) Smoking, Drugs and Rock and Roll - Susan learns the true meaning of drugs and smoking, but not even her parents stop her from overdosing herself; Stuart wrestles the truth about his virginity.
 * 5) What is Gay? - Spencer is surprised when his friend, Jorge is now gay.