Stephanie is excited about celebrating her first Mother's Day until she learns that the family plans to celebrate her on Stepmother's Day instead; Stephanie takes her mother to a day spa and gets some unexpected "mom" advice from a few experts who attempt to cheer her up.

James' video-game skills get him on a professional team, but then he regrets going pro, so Stephanie and Charlie try to get him out of his contract.

Stephanie tries to intervene when Aaron is given a hard time at school, but she makes matters worse. Meanwhile, Gabby’s trying out for cheerleading and Maggie volunteers to coach her, but comes off more like a drill sergeant.

Stephanie seeks parenting advice by starting an anonymous blog and receives helpful tips until she discovers that the “helpful” users are the kids living under her roof, who have an agenda of their own.

Stephanie feels expendable on Halloween when the kids make their own plans. Meanwhile, Charlie tries to maintain his record for having the best decorated house in the neighborhood.

Stephanie trades in cosmos for carpools when she marries a man with three kids. Her new role of full-time stepmom is challenging as she struggles to maintain some sense of her fun-loving, slightly irresponsible self.

Stephanie plans activities at home when the family gets snowed in on their vacation.

Stephanie and Charlie take sides when Gabby is held for shoplifting after returning a pair of jeans with the sensor still on; James sells unopened wedding presents to make extra money.

Stephanie attempts to get more involved by participating on the parents’ dance committee at James’ school only to find the other mothers mean and unwelcoming to the too pretty, too excited, binder-ready Stephanie.

Stephanie organizes a charity auction to inspire the children to give back; Stephanie goes to extreme measures to beat the previous fund-raising record.

Stephanie's old pal visits when Charlie's on a business trip, and Stephanie struggles to deal with the kids while living up to her old party-gal reputation.

Aaron lands in hot water with his teacher, whom he calls a doofus—a word he heard Stephanie utter. Meanwhile, James uses Charlie in his plan to get out of doing his history homework.

Stephanie’s determined to bond with the kids and uses her love of music to do it. But by forcing them to take up an instrument against their will, Stephanie learns a very public and embarrassing lesson in parenting.

Stephanie decides that Gabby needs to get a job and earn money for her car; Maggie and James try to teach the older generations how to speak like teenagers.

Gabby is the group leader for her school project but when Stephanie discovers that she's acting like a tyrant, she gets involved; Stephanie somehow ends up doing all the work.

Gabby is leaving for college a year early and Stephanie and Charlie consider having a baby; Aaron and James want to live with their mother in Orlando.

Stephanie tells James that lying is acceptable if it makes someone’s day better, which leads him to tell a huge lie. When everyone is called to the principal’s office, the family must find a balance between honesty and shading the truth.

Stephanie begins to feel old. Stephanie escorts Gabby to an audition for a rock band, and manages to get the gig for herself. James and Aaron try to bribe Maggie for money to buy a video game.

Stephanie bribes Gabby and James to keep a secret when she hires an old boyfriend to install a new sound system for Charlie.

Stephanie surprises the family with a visit from her father at Christmas; Stephanie is surprised by Maggie's reaction to her father's visit.

Stephanie worries that she is working too much when Aaron's imaginary friend returns.

Aaron learns that Maggie has a secret career as a romance novelist, but when she denies it, the family tries to get her to reveal her secret identity.

Stephanie and Charlie plan a child-free weekend in New York, only to find that Aaron has stowed away in their car; James and Gabby make plans while their parents are away.

Gabby gets asked out by a boy and she wants to go, but Charlie doesn't want her to date until she’s 16. Maggie backs him up, but Gabby sneakily gleans advice from Stephanie on how to get around the rule.

Stephanie helps James lead a student rebellion when the principal cracks down on the dress code; Gabby teaches Charlie how to use social media.