Teen Mom 2

Jenelle sees Kieffer without her mother's approval, Leah goes job hunting, Kailyn takes Isaac trick-or-treating, and Chelsea focuses on her GED.

Leah gets an update on Ali's health, Kieffer's gambling puts him at odds with Jenelle, Kailyn gets financial help, and Chelsea suffers an injury.

Kailyn moves out without telling her mom, Jenelle presses charges against Kieffer, Adam helps Chelsea during her surgery, and Leah takes Ali for an MRI.

Chelsea gets into a fight with Adam, Jenelle gives Kieffer a ride to jail, Leah gets Ali's MRI results, and Kailyn weighs her birth control options.

Jenelle and her mom fight on Christmas Day, Leah celebrates the twins' birthday, Chelsea and Aubree shop for toys, and Kailyn sends Jo's mom a heartfelt letter.

Kailyn plans Isaac's first birthday party, Jenelle gets ready for court, Chelsea advises an expectant friend, and Leah prepares Ali for physical therapy.

Jenelle and Kieffer argue about her ex, Leah awaits Ali's medical results, Chelsea moves into her own place, and Kailyn files for child support.

Chelsea looks for a new job, Jenelle moves out of her mom's place, Kailyn and Jo clash over child support, and Leah gets an update about Ali's health.

Toxic tensions boil over at Jenelle's house, Chelsea struggles after Adam breaks up with her, Kailyn consults a lawyer to get child support, and Leah and Corey fight over buying a home.

Kailyn introduces Jordan to Jo, Jenelle has her day in court, Chelsea participates in a charity walk, and Leah and Corey argue about moving out.

Leah makes a devastating confession, Adam distracts Chelsea from her GED prep, Kailyn starts getting along with Jo, and Jenelle weighs her rehab options.

Chelsea takes the GED, Kailyn hooks up with Jo behind Jordan's back, Leah and Corey prepare for their divorce, and Jenelle checks into rehab.

Kailyn and Jenelle update Dr. Drew on everything that's happened since the cameras stopped filming, including Jenelle's relapse and Kailyn's love triangle.

Dr. Drew hosts the 4 Teen Moms in the dramatic conclusion of the finale as Chelsea and Leah discuss the challenges they faced in season 2: the new milestones, school struggles, family drama, and the pain of breaking up.

Dr. Drew shares never-before-seen footage of Jenelle's time in rehab, Kailyn and Isaac's trip to campus, Aubree's big dentist appointment, and Leah and Corey's honeymoon.