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.
Catelynn and Tyler move back in together after a trial separation. Ryan returns home after rehab and wants to meet up with Maci. Cheyenne and Cory argue over his new girlfriend being around. (S8, ep1)
Maci struggles with how to tell Bentley that Ryan is in jail. Cory makes his relationship with Taylor official, but Ryder's disorder puts her in the hospital. (S8, ep2)
Catelynn gives birth to her third daughter. Cheyenne starts dating someone new and it doesn't take long for Cory to find out. (S8, ep3)
Maci and Taylor have a photoshoot debuting their first toddler line, while Ryan's family prepares for his release from prison. Catelynn worries that Nova isn't adjusting to her new sister. (S8, ep4)
Ryan returns home and Maci is disappointed he doesn't make more of an effort with Bentley. Cheyenne and Matt's relationship is getting serious. (S8, ep5)
The ladies take their first girls trip in ten years to Florida. Catelynn breaks some news to Nova who doesn't take it well, while Maci plans a surprise for Amber at a drag show. (S8, ep6)
Catelynn celebrates Mother's Day at home while Tyler visits his sister in Texas. Maci goes to Washington D.C to advocate for PCOS, while Cheyenne is shocked at Cory's girlfriend's behaviour. (S8, ep7)
Amber and Gary discuss how to handle Leah's panic attacks. Cheyenne questions Cory's priorities. Maci throws Taylor a surprise 30th birthday party. (S8, ep8)
Cheyenne meets Matt's family. Maci and Taylor discuss their birth control options. Catelynn and Tyler cause a stir on social media, and Amber gets answers about her health. (S8, ep9)
Catelynn and Tyler celebrate Carly's birthday without her, Maci sees Ryan at Bentley's baseball game, and Mackenzie suspects her husband may have cheated on her. (S8, ep10)
Amber feels she's at breaking point with Andrew. Cheyenne takes a trip to wine country with Matt and Ryder, and as Mackenzie tries to prepare for a fitness competition, Joshe goes MIA. (S8, ep11)
Maci takes Bentley to a counsellor, Catelynn and Tyler reunite with Carly, Mackenzie gets devastating news, Cheyenne addresses Taylor's racist tweets, and Amber is arrested. (S8, ep12)
After her arrest, Amber is released from jail. Mackenzie finds out Josh cheated on her. Maci's son can't go to Jagger's first birthday party. Cheyenne's boyfriend finally moves to LA. (S8, ep13)
Catelynn, Maci and Cheyenne visit Amber to support her first court hearing. Maci lets Bentley go golfing with Ryan, while Cory tells Cheyenne her priorities are not on Ryder. (S8, ep14)
Cheyenne throws her first fundraising event. Amber's custody battle takes a turn when Andrew petitions to move James. Mackenzie tries to file for divorce but Josh refuses to sign. (S8, ep15)
Gary takes Amber to anger management class after audio is leaked from a dispute. Catelynn visits her psychiatrist after listening to Amber's audio leaks. (S8, ep16)
Cheyenne questions the longevity of her and Matt's relationship. To Maci's surprise, Ryan shows up to Bentley's birthday party. Amber accepts a plea deal and avoids serving jail time. (S8, ep17)
Amber is shocked when security footage leaks from the night she was arrested. Andrew decides to share his side of the story. Catelynn confronts her mum about the trauma she experienced. (S8, ep18)
Amber starts a new romance. Maci is content co-parenting with Jen, Ryan's mum. Cheyenne ends her relationship with Matt, while Corey leaves to compete on The Challenge. (S8, ep19)
Amber's new boyfriend comes to visit. Maci contemplates sending Bentley to a private school. Cheyenne enrolls Ryder in a preschool prep class while Cory is away competing on The Challenge. (S8, ep20)
Amber is suspicious that Dimitri leaked their relationship to the media. Bentley becomes a big brother to Ryan's baby. Still working through her grief, Mackenzie takes a trip to FL. (S8, ep21)
Amber seeks advice from her psychiatrist. Catelynn finds an organic baby food company and travels to NY to consider a partnership. (S8, ep22)
As Cory and Taylor prepare for their gender reveal party, Cheyenne worries that Cory's attention might shift once the baby is born. Catelynn and Tyler celebrate Vaeda's 1st birthday. (S8, ep23)
Cheyenne confronts Cory about his priorities shifting away from Ryder. Maci makes a difficult decision. Mackenzie plans a special day to celebrate her late mother's birthday. (S8, ep24)