Rogelio's stepdaughters decide to try and make Jane's life miserable. Rogelio asks Xo to use his band.

Michael's suspicions make Jane question Rafael's actions.

Jane attempts to do what's best for the baby. Xo attempts to say sorry to Rogelio.

As Jane tries to juggle motherhood and school, she forgets to plan Lina's surprise 25th birthday party leading to friction between the best friends. Rafael tells Jane that he still wants a romantic relationship with her, but she is blindsided when he asks for joint custody. Petra tries to enlist Michael's help to keep Jane and Rafael apart. Rogelio's ex-wife, Luciana, is blackmailing him with secrets from years ago to get her role back on "The Passions of Santos." Meanwhile, Michael gets a new partner and a possible lead in the Sin Rostro case.

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.

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 has made big plans to celebrate Mateo’s first birthday, but things start to fall apart when she learns there might be an issue with her wedding venue. Rogelio faces a challenge on set that could jeopardize Jane’s big day. Jane is excited when Alba gives her a lead on a book publisher, but soon begins having doubts about her writing. Jane and Petra try to help Rafael figure out his troubles, but they have differing opinions on how to handle the situation. Meanwhile, Michael is convinced that Derek is really in cahoots with Mutter and has a plan to prove it.

After moving up the wedding day, Jane and Michael find all their carefully made plans thrown into chaos. To make matters worse, Jane is unhappy with her current graduate thesis, but changing it might put a wrinkle in her big day. Rafael still has feelings for Jane, but is torn about whether he should speak now or forever hold his peace. Petra has her own family drama when Anezka has a medical emergency and ends up in the hospital. Meanwhile, Rogelio and Xo are finally coming to terms with the state of their relationship until Xo gets surprising news.

When Rafael finally admits that he is over Jane, their co-parenting style is tested when they argue over what the best preschool is for Mateo. Xo is paranoid about Alba finding out her secret and what it will do to their relationship. Rogelio is ready to cross over to American TV, especially after he learns his nemesis is making the transition. Meanwhile, “Anezka” is trying to find new dirt on Rafael when she begins an unexpected romance.

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.

Working in publishing is not what Jane thought it would be, until she learns about a showcase for up and coming writers. With Petra helming the Marbella, she decides to rebrand the hotel, but quickly butts heads with the rival hotel next door. Rogelio and Darci have made a new arrangement which has put a strain on his relationship with Xo. Meanwhile, Jane and Rafael try to figure out the best solution to Mateo’s behavioral issues and they both seem to have different approaches.

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.

Jane and Fabian are not on the same page when it comes to their relationship, which makes it hard for Jane to ask him for a favor. Petra and Rafael both turn to Jane for advice, but Jane is determined not to get involved. Meanwhile, Jane volunteers to help Xo and Rogelio, but might have bitten off more than she can chew.

When Jane is reunited with her first love, Adam, she is shocked but happy to see him, however Xo and Alba are less thrilled that he is back. After Rafael loses ownership of the hotel to his sister, he finds himself at Jane's house, broke and homeless. Jane and Rafael learn that Petra has been found and they rush to her aide, but Anezka is nowhere to be found. Meanwhile, Xo and Rogelio wedded bliss is interrupted when they confront the realization that Darci is having Rogelio's baby and she wants full custody.

When Adam reveals his dating past to Jane, the information puts a strain on their relationship. Lina seeks Jane's advice about whether she should get married and begs Jane to give her honest opinion about her fiancé. Petra hears some important information that could help Rafael get the hotel back, but Rafael is more concerned about his sister's well-being. Meanwhile, Xo asks Rogelio to consider having a medical procedure done, but Rogelio is very hesitant.

After Jane and Rafael decide to send Mateo to a new school, they become guilt-ridden when they are forced to lie to get him in. After Xo convinces Rogelio to attend therapy they both are surprised by their emotions. Meanwhile, Petra finds herself in big trouble with no one to turn to for help, not even Rafael.

Jane and Rafael try to be friends which works great until Jane goes on a date. Petra and Jane's new partnership is off to a rocky start, but they both know they have to find a way to work together somehow. Rogelio is convinced he has Male Post-Partum Depression, which puts him at odds with with celebrity Post-Partum Advocate River Fields. Meanwhile, Alba finally tells Jane why she turned down the marriage proposal, leaving Jane to help Alba in the romance department.

After Jane, Rafael, Petra and JR all go out together, Jane is bothered to learn that JR doesn't like her. Jane and Rafael brush off a big relationship moment, but they both try to make up for it in different ways. Rogelio is nervous to tell Darci that he is no longer able to be a "Danny" so he uses Xo as a scapegoat landing him in hot water with both Xo and Darci. Meanwhile, Jane helps Alba secretly prepare for the biggest test in her life.

Jane believes she and Rafael are in a good place until she realizes he is keeping a secret from her. Alba's big day has finally arrived, and Jane, Xo and Rogelio are ready to celebrate but Alba has other plans. Petra and JR make a decision about their future that neither of them saw coming. Meanwhile, River spends the week with Rogelio in order to help them be believable as a married couple, but she soon starts to take her role too seriously.