Leah and Corey take Ali to the geneticist and get some troubling news. Jenelle and Kieffer reunite after he is bailed out of jail but tension builds when they have to face court for their breaking and entering charges. Chelsea takes steps towards being more independent and gets some surprising news that one of her friends is pregnant. Jo agrees to let Kailyn take Isaac for a few hours on his birthday so she can throw him a party, but Kailyn gets annoyed because she feels Jo isn't spending his time with Isaac.