Jane is concerned that Rafael won't be a good father. Michael has a realization concerning Jane.

Jane starts to go into labor after insisting that Xo and Rogelio go to Las Vegas for their show.

When a slot opens up in the graduate program that Jane has been waiting for, she is faced with her first big motherhood dilemma -- leaving Mateo sooner than expected. Rafael is still reeling from Petra's news as he tries to help plan Mateo's baptism with Jane. Xo helps Rogelio confront his past even though it makes Xo uncomfortable. Meanwhile, Michael takes some advice from Rogelio about how to handle Jane, but it is easier said than done for him.

Jane thinks she is finally ready to make a decision about her love life. Alba has taken the proper steps to become a citizen, but Xo's past might make it more difficult than anyone was expecting. Rogelio learns that his nemesis, Britney Spears, is at the Marbella Hotel and he is determined to confront her about their past. Michael is so caught up in his ongoing feud with Rafael that he ends up in big trouble at work. Meanwhile, Petra gets an offer from her ex Milos she just can't refuse.

Jane and Rafael begin estate planning for Mateo, but when Jane realizes that Mateo will inherit millions, she worries he will become spoiled. Jane is also finally starting graduate school, but her professor is not sympathetic to her situation. Rogelio's famous show is ending, so he decides to create his own show, with Xo's encouragement. Petra is shocked to learn what she is having and turns to Jane for advice and help in getting her mother out of prison. Meanwhile, after Michael's issues at work, he has decided to go rogue and is even more determined to catch Sin Rostro.

Jane and Rafael are still at odds with each other as they are about to celebrate Mateo's first Christmas. Jane discovers that the scholarship she thought she had been awarded isn't quite that and now needs to find a way to pay for grad school. Rogelio has employed an intern and is having trouble trusting him. Petra is struggling with the latest dilemma her mother has gotten them into. Meanwhile, Michael is trying to find Luisa's mother who he now suspects is not dead and may be involved with Sin Rostro.

Jane and Michael's wedding plans are side tracked when the Villanueva house is ruined by a flood. Jane is looking to have a small wedding, but Rogelio wants nothing more than to throw Jane a big blow out wedding so he can invite all his celebrity friends. Jane and Michael are also looking for the perfect home to move into and when they find a place 45 minutes away, Rafael has an issue being that far from Mateo. Petra is still having trouble adjusting to motherhood.

The Villanueva women have a tradition for Mother's Day and Jane is excited to get to participate in her first one as a mom. However, their plans are thwarted when Petra invites everyone to a brunch instead. Jane's TA position is put into jeopardy when a mysterious ad appears in the college newspaper. Rogelio is hurt when Dina doesn't invite him to her birthday party, so he asks Jane to help in an unusual way. Rafael finds himself in big trouble thanks to his half-brother. Meanwhile, Xo finds herself in a compromising position.

Jane convinces Alba to let her read the letters from her estranged sister, but under the condition Jane doesn’t reach out to her family. Rafael is starting to suspect that something is different with Petra. Meanwhile, Michael and Rafael, with the help of Jane and Rogelio, try to create a civil friendship, but it doesn’t go as smoothly as everyone hoped.

When Jane’s cousin unexpectedly shows up at her door, Jane questions her own less than spontaneous life. Xo finds the perfect location for her dance studio, but it happens to be near her ex-boyfriend, Bruce. Rogelio realizes his feelings for Xo, but struggles with telling her. Petra is served with a lawsuit and she decides to ask Rafael for help. Meanwhile, Michael is ready to get to work just as they get a break in the Mutter case.

Jane is ready for some casual dating and is pleasantly surprised when her date actually helps her fix things with Lina. Petra follows a lead with the help of Chuck that could help her sister’s case. Rafael takes Jane’s advice and tries to come clean with Petra. Rogelio is angry with Xo when she blows him off, but is shocked when he learns the reason why. Meanwhile, Alba is appalled by a comment a customer makes in the gift shop and decides to take a political stance.

Xo struggles to make an important decision and looks to Jane for guidance leaving Rogelio feeling like an outsider. Alba is frustrated with Rogelio when it seems he is once again making his career a priority over Xo. Meanwhile, Petra turns to Rafael for advice on her love life.

With Jane and Rafael finally in a good place, they are concerned to discover Mateo's treatment might be a problem. Alba and Rogelio are worried about Xo's recent behavior. Meanwhile, Petra is secretly pleased when Rafael and Jane begin fighting over her.