For four seasons fans of `Teen Mom' watched Farrah, Maci, Amber and Catelynn face multiple challenges in their first years of motherhood, including such things as graduating from high school, relationships, getting jobs, beginning college and moving out on their own. Oh, and raising their first child. Now the original girls - hence, the `OG' in the revived series title - return to reveal the challenges of raising children on camera, and how life in the public eye has shaped them as parents and people. It's an unprecedented view of young mothers facing the responsibilities of parenthood as their children enter kindergarten, start little league and reach other milestones of youth.
Amber struggles with her long distance relationship with Dimitri when he becomes possessive. Maci puts her personal feelings aside when Bentley wants to go to therapy with Ryan. (S9, ep1)
Amber is shocked when Gary asks her to move onto his property. Catelynn pursues a career in microblading. Bentley starts therapy and Maci's heartbroken when she finds out he feels neglected. (S9, ep2)
When Mackenzie's father needs to have quadruple bypass surgery, her plans to move to Florida are put on pause. Catelynn and Tyler contemplate having another child. (S9, ep3)
Maci helps Bentley decide if he should go to his brother, Jagger's birthday. Catelynn and Tyler work on discipling Nova while Amber makes a decision about living on Gary's property. (S9, ep4)
Catelynn believes she's pregnant while Maci deals with a change in venue for Jagger's party which puts Bentley in an awkward position. Cheyenne considers buying a new house with Zach. (S9, ep5)
Amber deals with online trolls who criticise her weight while Catelynn receives her microblading certification. To raise awareness during PCOS month, Maci accepts a challenge from Taylor. (S9, ep6)
Mackenzie struggles starting her new job in Florida and taking care of the kids. Cheyenne wants her family in the delivery room but due to Covid she doesn't know who will be allowed. (S9, ep7)
Cheyenne and Zach's families pressure them to get married while Mackenzie and Josh give their marriage another chance. Catelynn and Tyler decide to vote in the Presidential Election. (S9, ep8)
Cheyenne shocks Cory with her pregnancy news. Amber struggles when her dog's health deteriorates and Catelynn and Tyler are concerned that Nova might have a learning disability. (S9, ep9)
As Maci copes with the aftermath of the shooting, Cheyenne uses her platform to discuss racial injustice. Mackenzie's friends visit her in Florida and question her rekindled marriage. (S9, ep10)
Cheyenne is nervous for the results of Zach's genetic test that will determine whether their unborn child will have VLCAD. After not going to Leah's party, Amber tries to make amends. (S9, ep11)
Cheyenne and Zach have a gender reveal party and finally get the results of Zach's genetic test. Maci is shocked to learn that Ryan had a session with Bentley's therapist. (S9, ep12)
Catelynn and Tyler find out the gender of their baby with an at-home test. Mackenzie goes home to Oklahoma to surprise her dad and finds out he's still struggling with depression. (S9, ep15)
Heading into her 3rd trimester, Cheyenne needs Cory to help out more with Ryder but he has other plans. Catelynn is hesitant but Tyler wants to try ketamine therapy. (S9, ep16)
Amber wants to pursue a college degree in Psychology. Mackenzie and Josh seek professional help for Broncs. Cheyenne is devastated when her sister decides to move to DC. (S9, ep17)
Still hoping to reconnect with Leah, Amber sends her an emotional video message. Maci and Taylor worry that Maverick might be held back from going to kindergarten. (S9, ep18)
Catelynn takes her microblading career to the next level and starts taking on clients. Gary invites Amber over to see Leah. Mackenzie contemplates if Broncs should repeat Pre-Kindergarten. (S9, ep19)
Maci has a panic attack when she drives by the gas station where the shooting took place. Amber reveals that she is bisexual. Catelynn finds out that her brother has a girlfriend. (S9, ep20)
Catelynn considers having Nova in the room when she gives birth. Zach pursues a real estate license but Cheyenne is concerned he will not be able to balance a newborn with a new career. (S9, ep21)
Maci explains her PTSD to Bentley while Mackenzie and Josh get advice from a parenting coordinator. Catelynn and Tyler try to wean Vaeda off her pacifier before the new baby arrives. (S9, ep22)
Catelynn and Tyler explain Carly's adoption to Nova. Cheyenne finds out she will likely be induced for the safety of her baby. Maci makes healthy lifestyle changes to help manage her PCOS. (S9, ep23)
Mackenzie struggles to keep her blood sugar under control and lashes out at Josh. Gary reaches out to a parenting coach for advice on Leah and Amber's relationship. (S9, ep24)
Cheyenne gives birth to baby Ace while Catelynn plans a babymoon. Mackenzie's father comes to visit, so she tries to get his health back on track. Gary agrees to go to therapy with Amber. (S9, ep25)
Maci and Taylor plan a romantic date to work on their marriage. Mackenzie's father asks to take Jaxie to Oklahoma for the summer. Catelynn and Tyler welcome their fourth and final child. (S9, ep26)