Mía and Miguel vacation together in Monterrey. A new student, Sol, makes her debut. Miguel wins a cruise trip; him and Mía decide whether or not to go on it. Lupita and Nico have a emotional parting as he leaves for Israel. Lupita promises to wait for Nico. Each of the kids talk about their break with the others. Mayra takes Lupita to see her father.

Lupita's dad and his wife welcome her with open arms; however, her sister, Delores (Lola), does not. Alma starts her new rehearsals. Roberta finds spiders to put in Diego's shoes; he gets bitten. Miguel and Mía fly to Cancun without telling anyone. Lupita learns from her father that Dulce is not his. Roberta tell Tomás's cousin, Francisco (aka Leonardo), that she is the daughter of a cleaning lady with eight siblings. Mía asks Alma to tell Franco why she isn't back home. A new student, Rocco, makes his debut. Alicia cries over bad news. New student, Bianca Delight, makes her debut. José accidentally outs Roberta.

Diego finds out it was Roberta who put the spider in his shoe. Roberta and Diego agree to start the year as friends. Mía and Miguel arrive at the hotel. Giovanni finds out his parents got conned and lost everything. Diego and Roberta reconnect; she invites him for dinner. León forbids Mabel to call or talk to Diego. Miguel and Mía discuss being together for the first time. Diego catches León with another woman; he tells him Mabel left them. Gandia learns he may be dismissed.

Gandía learns he has to get a Master's degree if he wants to keep his job. Franco learns that Mía is not back in Mexico. Mía calls Franco but won't tell him where they are. Leonardo gets a scholarship into Elite Way. Rocco and Sol make bad first impressions with the others. Lupita continues to sulk about Nico. José is attracted to Leonardo, who happens to be Téo's roommate. Gastón reappears in his original position, baffling everyone. Roberta is caught with protest signs against Gandia.

Giovanni is caught by Vico's mother in her home. Gandia punishes Roberta and the other classmates, except Lupita. Vico's mother takes an interesting approach with Giovanni. Diego reflects on what León told him. Some of the girls believe Pilar was the snitch; however, Roberta believe she has changed. The new Literature teacher decides to ban the girls from putting on makeup or their hair down in her class. Franco sends his friend to Alma for information on Mía. Roberta plans to go to Diego's room to find out what's wrong. Mendiola tells Gandia he will be taking an American class and will be tested; he faints.

Miguel and Mía continue their unsupervised vacation. Pilar is embarrassed by being outed for lying about her vacation; Gandia only makes it worse, so she promises revenge on those responsible. Pilar apologizes to the girls and they forgive her. The girls in class are overjoyed at their new Math professor, Gonzalo Miranda, even to go as far as to make flirtatious comments. Giovanni's mom finds out he's not at school. Nicky, Franco's friend, visits Gandia about Miguel and Mía. Hilda reveals to the class that Hilario has died. Tomás and new student, Mauricio, vie for Sol's attentions. Vico catches Giovanni in her mother's bedroom. Miguel and Mía discuss being intimate and the fears that she has. León tells Diego he has urgent news about his mother. Lupita puts her foot down with Lola.

Mía and Miguel decide to visit the Island of Eternal Love. Celina gets a secret admirer, but is it truly love? Tomás offers to do Sol's homework. Vico's mother continues her sexual conquest for Giovanni until her boyfriend, Everardo, returns; he kicks Giovanni out. León manipulates the emails traffic between Diego and Mabel. Tomás uses Anita to complete his tasks for Sol. Celina struggles with secret admirer gifts. Mauricio gets a hold of the math problems thinking they are Tomás's. Lola plans to prank Lupita. The boat drifts away and Mía and Miguel get stranded on the island. Diego gets a heartbreaking email and lashes out at Roberta.

Lupita's project is sabotaged during her presentation. Mía and Miguel discuss her fear of abandonment and their future together. Gandia punishes Lupita for the botched presentation. Pilar encourages Celina to accept the advances of her secret admirer. However, Vico, Celina, and Pilar try to figure out who exactly is her secret admirer and if they even exist? Mía and Miguel discuss being intimate for the first time. Professor Miranda decides to make Lupita and Teó his assistants, it sparks José's jealousy. Miguel and Mía discover the boat is gone. Alma goes to the travel agency to find information on Miguel and Mía. Lola gets Leonardo in trouble with Gastón. Alma and Nicky find out where Miguel and Mía are. Roberta fakes a sprained ankle to go check on Diego.

Miguel and Mía discover that the boat has drifted away. Pilar asks Leonardo to talk to Celina to further her vindictive plans. Diego tells Roberta he believes his mother is as evil as his father for leaving him; he tries to kiss her. José demands Lupita stay away from Téo. After their talk Celina believes that Leonardo is her secret admirer. León continues to lie to Deigo about his mother and tells him he has to testify against her. Mía wakes and panics when she doesn't see Miguel. Pilar and Vico try to convince Celina to go further with Leonardo. A new guy, Roger, is interested in Roberta.

Roger asks Roberta to put on a concert. Diego thinks Roberta still loves him; she gives him a chance to show he has matured. León continues his pursuit to get Diego to testify against his mother. Rocco and Pilar decided to work together making videos about the gossip around the school. Roger asks Robert for a date; she agrees. Mía and Miguel run out of food; Miguel catches some fish. Celina puts her letter in Leonardo locker, not knowing she's being filmed. Vico suspects Giovanni of lying. Leonardo finds Celina's letter and goes to the meeting place; she kisses him. Celina finds out Leonardo didn't send her the gifts. José tells Robert her concern about Lupita and Téo but Roberta tells her she's imagining things. Pilar switches the video discs. Mía passes out.

Miguel finds Mía passed out off a cliff with a fever. The DVD of Celina and Leonardo is played in class. Miguel finds a surfboard and tells Mía he's going to get help but has to leave her alone. Giovanni and his parents argue about their new lifestyle.

Roberta makes the brazen in front of the director but then she repents and asks for forgiveness. The director is going to give him a chance. Diego is hospitalized for the accident.

Gandia sabotages the students' prank. Franco invites Alma to go with him to the airport. Leonardo roughs up Rocco in Celina's defense; Pilar intervenes.

Mía finds Sol now taken over her bed. Pilar gives Vico a letter written from Giovanni to another girl; she pretends to be the girl when Vico calls.

Mía sees Miguel and Sol and confronts them; Pilar eavesdrops. Vico's mother decides to move in with her boyfriend and tells Vico she has to live at the school.

Roberta refuses to help Pilar stay at the school, still believing she is a snitch. Roberta and Diego continue to try to make the other jealous.

Miguel, Diego, and Giovanni vent and mope about their girl problems. Mía offers her house as a rehearsal space for the band. Diego and Miguel decide to play a trick on Mía and Roberta.

Lupita gets Leonardo's love letter; José tries to convince her to go on the date and to forget Nico. The Headmaster Font cuts Santos' hair with a razor in front of the entire class.

Gastón lets Mía take the keys, but tells her not to get caught or say he helped her. Vico returns the gifts Giovanni got for her. Lupita and Leonardo enjoy the date with each other.

Lola tries to be friendly to Lupita after her "date" with Leonardo. More people find out about the puppy, Chopi. Font learns that Sol is "more than friendly" with Professor Miranda. Alicia finds pictures of teenage girls in Font's desk.

Gastón finds Chopi, but what will he do with him? Alicia tells Hilda about the pictures; Santos overhears. Fatima tells Nicky that she always dreamed of marrying him.

Tomás finds out that José switched the tapes. Alicia's plan to expose Font backfires. José and Téo fight; they break up. José and Tomás discuss Roberta and Diego.

Nicky asks Franco to let Fatima stay at the house. Santos asks Font if he can do a documentary on him and the school to put his plan into motion. Professor Miranda (Gonzalo) tells Sol to stop her flirtations.

Alma is asked by a producer to take her show to Las Vegas. Roberta still refuses to break up with Roger because of his "condition". Sol snitches to Font about Professor Miranda helping the class.

Miguel is upset about Mía talking to Gastón. Mía doesn't like Fatima around Miguel; later she finds out she is the woman who will be staying at her house.