S1 E1 - Betty's new school

Beatriz is at her new school; she hopes to have a chance to make friends, and Valentine's Day is the perfect opportunity to do so, but things don't turn out quite as well as they seem.

May 11, 2002 • 20m

S1 E2 - Nico, the new classmate

After a long day of classes, Betty decides it would be a good idea for Nico to study with her; she succeeds, but Nico becomes interested in Patricia, who has a wicked plan to submit a successful science project.

May 18, 2002 • 21m

S1 E3 - ¡Fame or nothing!

This time, the task is to work in groups to create a proposal for the school TV program; Betty and Nico eventually find other classmates to work with, and although things didn't go quite as expected, the "Ugly Club" learned a new lesson.

May 25, 2002 • 22m

S1 E4 - Run chicken ¡Run!

It’s the weekend, and Betty goes out with her friends; feeling lonely, Nico decides to get a pet for company. He finds Claudio the chicken and brings him home without permission. Months pass, and then Doña Nicolasa discovers the chicken—the ending is unexpected.

Jun 1, 2002 • 16m

S1 E5 - Wet dreams

Daniel still wets the bed; Marcela finds out and threatens to reveal his secret at school—though that may not even be necessary, as they are heading off to camp where he could easily be caught. However, Daniel has a plan to prevent that from happening.

Jun 8, 2002 • 20m

S1 E6 - Pokemondongo

The latest trendy toy arrives; Nico wants it, but Doña Nicolasa doesn’t have the money to buy him the toy. However, the creators of "Pokemondongo" purchase a recipe from Nico’s mother, and he ends up getting his new toy.

Jun 15, 2002 • 19m

S1 E7 - Betty the beauty

Betty is the smartest girl in the class; her classmates Marcela and Patricia are envious, so they want to see her fail at something—which is why they convince Hermes to let her enter a beauty pageant, hoping she will lose.

Jun 22, 2002 • 20m

S1 E8 - I’m going to be a mom

Don Hermes and Julia decide it’s time to explain to Betty how babies come into the world, using a metaphor; meanwhile, at school, she gets stung by a bee, and the drama of becoming a mother begins.

Jun 29, 2002 • 19m

S1 E9 - Girls in charge

After failing to make the cheerleading squad, the "ugly girls" club is reluctant to help Marce with a bet; however, Betty convinces them, and the girls end up winning a hard-fought soccer match.

Jul 6, 2002 • 23m

S1 E10 - Theater Night

It’s time for auditions to play Juliet, and Betty is ready to land the lead role—and get to kiss Armando on a magical night, without Marcela or Patricia standing in the way of love and art.

Jul 13, 2002 • 22m

S1 E11 - My diary!

Betty writes her name next to Armando’s, but the girls from the "squad" notice the diary and want to know who her crush is; however, the diary ends up in Armando’s briefcase, and now it’s time to get it back.

Jul 20, 2002 • 18m

S1 E12 - I want to be a monitor

Marcela does not choose Armando for her monitoring campaign, so he decides to help Betty as a way to take revenge for his girlfriend’s disloyalty; and although Betty wants to secure the monitoring role in a fair manner, Armando has a different plan.

Jul 27, 2002 • 23m

S1 E13 - Mario the Rejected

Nicolás arrived in class with chickenpox, and Mario—after having touched him—points it out to everyone; now, no one wants to be near him, but Betty helps him, as she has gone through that same situation herself.

Aug 3, 2002 • 20m

S1 E14 - Star-crossed star

It’s a field trip day, and the television station proves to be the perfect place to find fame; the children from the Gimnasio Postmoderno school take part in an audition, and Betty is chosen for the soap opera—but Patricia won’t let that happen.

Aug 10, 2002 • 21m

S1 E15 - Happy Father's Day

It’s an emotional day for Nicolás; the Father’s Day musical is approaching, and Nico is determined to find a father figure—at any cost—to introduce to his classmates. The best candidate is Don Hermes.

Aug 17, 2002 • 17m

S1 E16 - The substitute teacher

Following a failed experiment, Professor Gutiérrez is away from the school for a while, and the new substitute teacher has stolen Freddy’s heart—though his feelings are not reciprocated.

Aug 24, 2002 • 17m

S1 E17 - Nicolás and his magic soccer cleats

Nicolás loves Patricia and intends to win her over by playing soccer—even though he knows it’s not his strong suit—but his luck is set to change with the help of a genie, who provides Nicolás with exactly what he needs to win the heart of his beloved.

Aug 31, 2002 • 19m

S1 E18 - Save the school

A fire causes the school to suffer major losses, and the only person who can save it's Mr. Gutiérrez with his lottery ticket; however, he dreams of traveling to space—yet his love for the school proves greater than the trip itself.

Sep 7, 2002 • 20m

S1 E19 - The super bike

The figure-riding contest is Nicolás’s chance to get a new bicycle; after rigorous training, the day of the competition arrives, and Nicolás emerges as the winner.

Sep 14, 2002 • 17m

S1 E20 - The pretty girl’s luck, the ugly one desires

The kids head off to school—Betty dressed in her best look—but her classmates mock her, so she asks Nicolás for help; thanks to his chemistry skills, the transformation is striking, though it isn't permanent.

Sep 21, 2002 • 24m

S1 E21 - Freddy vs. Colombia

Armando and Mario are going to the stadium, and Freddy doesn’t think twice about joining them; he does everything in his power—going to any length—to get his friends to the stadium so they can watch the Colombian national team play.

Sep 28, 2002 • 19m

S1 E22 - Love makes idiots of us

Mario the prankster is punished, and in the midst of his punishment, he meets Lulú—the rector’s daughter—who, unbeknownst to him, could become his undoing, as Mario falls in love with another prankster just like himself.

Oct 5, 2002 • 20m

S1 E23 - First Communion

Betty wants to celebrate this special day with her peers, but for her parents, it is very costly to provide everything the little girl needs; nevertheless, Betty manages to have a truly grand First Communion celebration.

Oct 12, 2002 • 22m

S1 E24 - Mario Four-Eyes

Mario Calderón mocks his colleagues for wearing glasses, only for it to be discovered that he needs them too; however, he adamantly refuses to wear them—until an incident occurs that leads him to start using them.

Oct 19, 2002 • 16m

S1 E25 - Give me back my girl

Marcela has declared her eternal love to Armando, but Patrick has arrived from France, and she has become infatuated with him; Armando, feeling jealous, is determined to do whatever it takes to get things back to normal.

Oct 26, 2002 • 20m

S1 E26 - True lies

Freddy wants to win over Aura María, but he feels she pays him no attention because he has no money; however, that is about to change, as Armando intends to help him.

Nov 2, 2002 • 19m

S1 E27 - I… I… I love you

After a game, the girls in the group realize that Sofia likes Mario; he feels nothing for her, yet she is getting her hopes up—but the person who is actually interested in her is Williamcito.

Nov 9, 2002 • 21m

S1 E28 - Forbidden to Forbid

Mario does not want to take the exam, which leads to him becoming a discipline monitor; he takes his new role very seriously, punishing all his classmates—and even the teacher—but in the end, he learns his lesson.

Nov 16, 2002 • 21m

S1 E29 - Beggar for your love

Nicolás is jealous of Marito Duarte, and during a fit of rage, they are mistaken for one another; Nico ends up dating Patricia, and Marito finally gets a break from the spotlight—though things spiral out of control, everything eventually returns to normal.

Nov 23, 2002 • 20m

S1 E30 - Armando the Frog

Being a snitch is never an option—Nicolás learned that lesson—but what about Armando? A change of group could turn him into the snitch, or perhaps the "chicken," of class 5B.

Nov 30, 2002 • 20m

S1 E31 - Where will the girls play?

Dance classes make Sandra feel like she isn’t good at anything, so Betty suggests that basketball might be a good option. Betty is right, but the coach refuses to accept her because she’s a girl—will her trick work?

Dec 7, 2002 • 18m

S1 E32 - Armando decides

Armando grows tired of Marcela and her manipulation, creating the perfect opportunity for Betty to win him over; however, Marcela convinces Betty to help her win Armando back instead.

Dec 14, 2002 • 20m

S1 E33 - Super Grandma

Mario and Armando are the biggest pranksters among the hosts, but it seems Innescita is set to put an end to their bad behavior with a good scare—one that leads to a lesson, a new host, and a new friendship.

Dec 21, 2002 • 19m

S1 E34 - The guardian angel

Nicolás has a guardian angel, and the angel must teach him how to defend himself—will he succeed? After a few tricks, Nico learns the lesson.

Dec 28, 2002 • 16m

S1 E35 - You break it, you buy it

Mario and Armando look for a way to avoid listening and pretend to faint; Gutiérrez notices, and they accidentally damage a trophy. What will they do to avoid being punished?

Jan 4, 2003 • 19m

S1 E36 - Pianist dog

It’s a new day in the story; the kids bring their pets to the dog show. Nico discovers a dog that plays the piano. He introduce the dog to his classmates, but Baboso doesn’t want to play—though, in the end, they realize that Baboso actually can play.

Jan 11, 2003 • 19m

S1 E37 - Superstition brings bad luck

A chain letter sparks fear at school; Betty doesn’t believe in such things, but a series of events makes her start to doubt—fortunately, she has her dad who helps her put an end to that streak of bad luck.

Jan 18, 2003 • 19m

S1 E38 - Love Traps

Betty joins the school band to be close to Armando; Mario notices this and bets that it’s all because of love. Realizing this is the case, they take advantage of the situation to get her to help them with their exams.

Jan 25, 2003 • 23m

S1 E39 - Someone is watching us

The children’s toys keep disappearing—it must be the monster that’s been stalking the students who bring their dolls to school.

Feb 1, 2003 • 20m

S1 E40 - Enemies of the soul

This is a chance to win a Nobel Prize, save nature, and gain recognition; Betty and Nico are working on a mega-project, but a misunderstanding puts their friendship at risk.

Feb 8, 2003 • 19m

S1 E41 - FrankenNico

Nico can’t find anyone to play with, so he decides to create his own friend to have some fun; Verne the robot arrives at school, and after a few mishaps, Nico and Verne learn the true meaning of friendship.

Feb 15, 2003 • 21m

S1 E42 - The lever moves mountains

Nico wants to play hockey, but he isn’t very good at the sport. Nicolasa speaks to the coach, who gives him a chance; Nico’s game improves, but the coach also falls in love with Doña Nicolasa.

Feb 22, 2003 • 16m

S1 E43 - Operation Dumbo

The students go to the circus, discover the mistreatment of the elephants, and set out to fight the villains in order to rescue Elsita and Moscorrofio; they succeed, and the elephants are set free.

Mar 1, 2003 • 16m

S1 E44 - Gutiérrez was to blame

Mario and Armando’s pranks no longer have any effect on Gutiérrez; he realizes that Mendoza’s injury is fake, and he intends to show both Mendoza and Calderón that making light of someone’s health is no laughing matter.

Mar 8, 2003 • 21m

S1 E45 - Thank you, Tooth Fairy

Mario shows off the gift that the Tooth Fairy (Ratón Pérez) left him, and Nico wants an airplane just like it; he decides to speed up the process of losing a tooth so that the Tooth Fairy will bring him a gift, too—but he hasn’t reckoned with the dentist.

Mar 15, 2003 • 16m

S1 E46 - Nicolás The vampire

It’s movie night, and Nico and Betty decide to watch horror films—after all, they’re big kids now—but it turns out that vampires actually exist, and Nico must avoid getting bitten.

Mar 22, 2003 • 17m

S1 E47 - The best defense is offense.

Nicolás has a very bad flu and wants to find out why he isn’t getting better, so he sends the girls to explore inside his body to see why his white blood cells aren’t working—an experience that turns out to be quite an adventure for them.

Mar 29, 2003 • 17m

S1 E48 - Louse for louse, tooth for tooth

Mario Calderón has lice from putting on a hat he found in the trash; he realizes it, but says nothing, and instead looks for a way to ensure that all his classmates also become infested with lice.

Apr 5, 2003 • 17m

S1 E49 - Episode 49

Apr 12, 2003 • 16m

S1 E50 - Freddy the Liar

Freddy doesn’t want to be punished, so he lies to Gutiérrez—and then has to keep lying to avoid being found out—but the situation spirals out of control when the teacher and his classmates come to visit him.

Apr 19, 2003 • 18m

S1 E51 - Bertha the fatass

Bertha’s peers tease her about her weight; feeling hurt, she decides to change her lifestyle. Although it’s difficult, she manages to lose weight and takes the lead role in the fashion show away from Patricia—though the diet takes a toll on her health.

Apr 26, 2003 • 18m

S1 E52 - Last day of classes

Classes are finally coming to an end, and the students at the postmodern school are feeling happy. Mario thinks that nothing could possibly ruin his last day of class—unless Gutiérrez decides to give a math test and Mario gets caught copying from Betty.

May 3, 2003 • 20m

S1 E53 - My grandmother’s treasure

Armando is left home alone, as his parents go away on a trip and his grandfather arrives to look after him. It seems this might not be the best vacation after all—or so they think—but an adventure awaits them.

May 10, 2003 • 19m

S1 E54 - Episode 54

May 17, 2003 • 16m

S1 E55 - Episode 55

May 24, 2003 • 17m

S1 E56 - Betty Valencia

Marcela is tired of being a Valencia, but the discovery of an error leads to her no longer being a Valencia—instead, it is Betty who takes on that surname. Will they adapt to their new lives?

May 31, 2003 • 19m

S1 E57 - Happy birthday, Armando

Today is a special day for Armando—it’s his birthday—but no one remembers this all-important date, except for Betty. She wants to give him a very special gift, but Armando treats her poorly.

Jun 7, 2003 • 18m

S1 E58 - Goodbye, mon amour

Betty arrived for her meeting with Armando, but she received an even bigger surprise when she was told she had been awarded a scholarship to France; however, she hesitated because of her love for Armando—but in the end, she decided to go to France.

Jun 14, 2003 • 20m