Leah has a new boyfriend, Jenelle and Nathan square off, Chelsea gets disappointing news, Briana makes a big decision, and Kailyn sees Javi's pregnant girlfriend in person.
Jenelle is upset when Jace's father unexpectedly reaches out, Chelsea wonders if Adam can get it together for visitations with Aubree, and Isaac visits Javi's house.
Jenelle makes a shocking call to 911, Kailyn considers reconnecting with her mother, and Chelsea checks into the hospital after experiencing signs of early labor.
Jenelle refuses to appear on camera after her 911 tape leaks, Leah takes Ali to a vital doctor's appointment, Kailyn reconnects with her sister, and Briana visits a new beau.
Chelsea and Cole welcome their daughter Layne, Barbara grows concerned when Jenelle avoids filming, Leah's home floods, and Briana goes on a camping trip with her new flame.
Briana faces an emergency, Leah worries about Addie, Chelsea and Cole bring their new baby home, Kailyn plans her sister's baby shower, and Jenelle contemplates her future.
Chelsea learns that Aubree's father gave up custody of his other daughter, Jo files for child support from Kailyn, and Leah's new boyfriend Jason meets Corey.
Jenelle undergoes emergency surgery, Briana and Kailyn each confront their exes about child support, and Chelsea is upset when Adam once again flakes on a visit with Aubree.
Jenelle considers introducing Jace to his dad, Chelsea leaves Layne and Watson alone with Cole for the first time to spend time with Aubree, and Kailyn butts heads with Javi.
Barbara is frustrated when Jace's dad doesn't show up when she flies out to meet him, Kailyn gets mixed signals from Lux's dad Chris, and Devoin joins Briana on a family trip.
When Jade's parents are arrested, she's forced to pick up the pieces. Devoin tries to prove to Briana that he can be around for Nova. Leah welcomes Ali home from camp. Chelsea celebrates her shared birthday with Layne. Kailyn makes a big investment.
