Leah and Corey go to mediation over custody of the girls, while Chelsea and Adam take a big step forward. Jenelle fails a drug test, and Kailyn tries to connect with her estranged mother.

Leah and Corey finalize their divorce; Chelsea's father learns that she is living with Adam; Jenelle goes against her lawyer's advice; Kailyn sees a picture of Jo and his girlfriend.

Leah looks into a nursing program; Chelsea is invited to a concert; Jenelle pays the price for her probation; Kailyn wants to change the custody agreement.

Leah starts college and goes on a date, Chelsea and Adam officially call it quits, Jenelle writes a letter to her probation officer, and Kailyn starts feeling smothered by Jordan.

Jenelle gets set up with a boy, Leah and Jeremy become a couple, Chelsea sees a therapist, and Kailyn officially ends things with Jordan.

While Chelsea gets her life on track, Jenelle decides to move in with Josh, Kailyn plans to visit family in Texas, and Corey gives Leah mixed feelings by second guessing their divorce.

Leah tells Jeremy about her confusion regarding Corey, and Chelsea tries to get back on track with school. Things fall apart with Jenelle because she moved in too quickly with Josh and Kailyn goes to Texas and reconnects with her cousin and half sister.

Leah finds a bigger house to move into with Jeremy and Chelsea's dog goes missing. Jenelle breaks up with Josh, and Kailyn learns her mother Suzi visited Isaac behind her back.

Leah plans a birthday party for the girls; Chelsea convinces her father to help her move; Kieffer re-enters Jenelle's life; Kailyn meets a new boy.

Leah and Jeremy get serious; Chelsea breaks down on Adam's birthday; Jenelle questions Andrew's paternity; Kailyn is asked on a date.

Leah has news for Corey; Chelsea prepares for beauty school; Jenelle goes through with the paternity test; Kailyn and Jo fight about his new girlfriend.