Jane makes a shocking discovery and looks to Rafael for answers but is confused by his decision to put everything he and Jane have on hold. Meanwhile, Petra is trying to secure a future with the hope of it being with JR, but her past might jeopardize everything.

After talking to everyone else about what is going on in her life, Jane turns to Petra, who she knows will give her a straight answer. In return, Petra leans on Jane for advice about JR (guest star Rosario Dawson). Xo is determined to be at grandparents' day for Mateo but still has one more chemo treatment. Meanwhile, Alba is getting mixed messages from Jorge about their relationship.

With everything that has been going on, Jane reluctantly agrees to let Rogelio throw her a big 30th birthday party. Jane’s mentor gives her some important advice that may help her start writing again. Meanwhile, Petra thinks she and JR are finally in a good place, until she realizes that JR might see things differently.

Jane struggles with giving Rafael his space after she discovers that he is hiding a secret. Jane and Michael uncover clues about what happened the day he "died." Petra wants to fit into JR's world and enlists Jane's help. After a few attempts to get back into the groove, Xo and Rogelio work together to try and find a new normal. Meanwhile, Alba confesses her feelings about Jorge.

Jane is having a hard time dealing with Rafael avoiding her, so when an issue with Mateo comes up she uses it to get some face time. Rogelio turns to Jane for help when he learns his pilot is in trouble. Alba and Jorge enlist Xo’s help to study for their upcoming immigration test. Meanwhile, Petra finally gets to the bottom of who has been terrorizing her.

When Jane and Rogelio join forces to pitch a pilot, Jane is excited until she discovers a secret about her book being published. Alba and Jorge make an important decision about their future together. Rafael asks Jane to allow Luisa to meet Mateo, but she is unsure of her decision. Meanwhile, Petra and JR's relationship is once again tested.

With Jane and Rafael finally getting ready for their big day, Rafael’s desire to help Jane’s writing dream lands him in trouble. Xo and Rogelio must tell the family about their decision and not everyone takes it well. Meanwhile, Petra struggles with her emotions.