The Three Bears (Los tres osos) decide to go for a walk because the soup they have prepared for dinner is too hot. Finding the bears away, Goldilocks (Ricitos de Oro, played by Niña) explores their home with great curiosity until she accidentally breaks Baby Bear's (Bebé Oso) chair. The bears return to discover not only a surprise guest snuggled in Baby Bear's bed, but also the badly damaged chair.
Goldilocks (Ricitos de Oro, played by Niña) returns to the home of The Three Bears (Los tres osos) to redeem herself by making soup. But first she leaves to find her friend, Little Rat (Ratoncito), to help her. Once again the soup turns out to be too hot to eat and the entire group goes for a walk-all except Salsa, who enjoys the soup on his own.
Goldilocks (Ricitos de Oro, played by Niña), Little Rat (Ratoncito) and The Three Bears (Los tres osos) set about fixing Baby Bear's (Bebé Oso) broken chair. After it is mended, they decide to touch it up with a new coat of paint. The group carefully considers the colors red and green, but the color blue wins the day. To everyone's dismay, Little Rat rocks in the new chair and breaks it again!
Baby Bear (Bebé Oso) decides to play a game of hide and seek with his new friends-Goldilocks (Ricitos de Oro, played by Niña), Little Rat (Ratoncito) and Salsa. After everyone hides, Baby Bear searches high and low, atop beds and underneath tables, interrupting Papa Bear's (Papá Oso) sleep in the process. Once Little Rat and Goldilocks have turned up, everyone looks for Salsa, who they find in a green bowl – where he's enthusiastically playing maracas.
Goldilocks (Ricitos de Oro, played by Niña) and Little Rat (Ratoncito) join The Three Bears (Los tres osos) to celebrate Baby Bear's (Bebé Oso) fifth birthday in a festive, traditional manner. During the party preparations, Baby Bear reveals that he wants a puppy. After breaking open a piñata and blowing out the candles on his birthday cake, Baby Bear begins opening gifts. He receives a banana, an apple, a soccer ball, a wooden train, a yellow shirt and, finally-a puppy!
The Girl (Niña) and the Dog (Perro) find that too many cooks spoil the broth-or, in this case, the hot chocolate. While watching a cooking show on television, the two decide to make hot chocolate. After the pair leave the kitchen to let their concoction simmer, Little Rat (Ratoncito) and other characters drop by to add some unconventional ingredients to the recipe, including a tennis shoe.
Little Red Riding Hood (Caperucita Roja, played by Niña) meets the Wolf (el Lobo) on the way to Grandmother's (la Abuela) house. After seeing that she is bearing many treats, the Wolf hatches a plan to steal them that leads to taking both Little Red Riding Hood and Grandmother prisoner. Lucky for them, Salsa witnesses everything and tells a policeman, who saves the day.
The Wolf (el Lobo) takes on different disguises in his relentless quest for food. He pretends to be a chocolate salesman, a singer and, finally, a maid. Little Red Riding Hood (Caperucita Roja, played by Niña) and Grandmother (la Abuela) take pity on the poor Wolf and offer him a banana and some flowers, but the flowers make him sneeze.
Still not satisfied, the Wolf (el Lobo) tries one more disguise in an effort to get food. Grandmother (la Abuela) allows the Wolf to enter dressed as an old man. Even though everyone can plainly see it's the Wolf, they decide to play along with his charade in order to teach him to say "please" and "thank you." When he's finally allowed to eat, the Wolf makes himself ill by devouring everything in sight. Bloated and queasy, the Wolf is carried away on a stretcher.
Grandmother (la Abuela) puts the Wolf (el Lobo) on a diet and exercise program after discovering how much weight he has gained. First he proves to be a poor runner, complaining of fatigue and aching feet. Then the Wolf finds himself frustrated when Grandmother serves Little Red Riding Hood (Caperucita Roja, played by Niña) a larger portion of food. Finally, Grandmother shows the Wolf how to lift weights and even gets him hopping through her aerobics class.
Baby Bear (Bebé Oso) and Little Rat (Ratoncito) have fun making up their own version of Little Red Riding Hood. In their story, Little Blue Riding Hood (Caperucita Azul, played by Niña) is skipping through the forest with a puppy, as well as a basket containing a hamburger and french fries. She encounters the Wolf (el Lobo), who rushes ahead and ties up Grandmother (la Abuela) before she can arrive. Meanwhile, Little Blue Riding Hood runs into some bees, who chase her to Grandmother's house. Eventually, the persistent bees chase all of the characters back to the playroom.
Little Red Riding Hood (Caperucita Roja, played by Niña) and the Wolf (el Lobo) become friends by learning to share and solve problems together. Grandmother (la Abuela) has prepared a basket of goodies to send along with Little Red Riding Hood on her way home. Along the way she meets the Wolf, who also has food. Because they both want what the other has, they decide to negotiate a fair trade of food items. Sharing makes them realize they are actually friends and inspires them both to break into song.
The Three Goats (Los tres chivos) wish to go to a pizza restaurant located on the other side of a bridge. The problem is, the bridge is home to the Monster (el Monstruo), who doesn't wish to let them pass. The Monster first encounters Little Goat (Chivo Pequeño), who tells him to wait for Medium Goat (Chivo Mediano), who is much bigger and more worthy of his attention. The Monster allows him to pass. Medium Goat informs the Monster that a still bigger goat is on the way, which wins him passage. Finally, Big Goat (Chivo Grande) arrives and the Monster proves to be no match for him.
Once again, The Three Goats (Los tres chivos) want pizza. This time they decide to call for a delivery. The Pizza Girl (la Niña de la Pizzería, played by Niña) takes their order. On her way to deliver the pizzas, the Pizza Girl encounters the Monster (el Monstruo), who tries to frighten her before noticing her purple hair, which frightens him! The Pizza Girl arrives at The Three Goats' home to discover she has delivered the wrong order. Returning, she runs into the Monster again, who falls into a creek due to his fear of all things purple.
The Three Bears (Los tres osos) compete against The Three Goats (Los tres chivos) in the "¿Qué es" game show, hosted by the Monster (el Monstruo). Asking the question, "What is it?" the show presents items for contestants to identify. The Three Goats win the contest and a toy car by correctly identifying the color green, but they end up envying The Three Bears, who have taken home the runner-up prize of a large pizza. Back at the playroom, a trade is arranged and everyone celebrates!
More pizza has arrived for The Three Goats (Los tres chivos). Finding it too hot to eat, they accidentally leave it out for the Monster (el Monstruo) to eat. After enjoying the pizza, the Monster sees a purple toy car and a purple house made of blocks. He becomes very frightened, breaking the car and knocking over the house before running into a fence. The Three Goats confront the Monster, who decides to conquer his fear by fixing their toys. Still not satisfied, The Three Goats persuade the Monster to order more pizza.
Misunderstandings threaten to ruin the Monster's (el Monstruo) birthday. The Girl (Niña), Salsa and the Chef (Chef Loco) are busy making a cake for the Monster when he drops into the pizza parlor for a visit. Not wishing to spoil the surprise, they quickly disappear. Next he pays a visit to Baby Bear (Bebé Oso), who, together with Little Rat (Ratoncito), is wrapping a present for the Monster. They, too, quickly disperse. The Monster's spirits improve greatly when all of the characters throw a surprise party for him.
While the Dog (Perro) sleeps, the characters concoct their own version of The Three Billy Goats Gruff. On the Goats' way to get ice cream, the Monster (el Monstruo) stops Little Goat (Chivo Pequeño) and charges him seven tomatoes to cross the bridge. Little Goat comes back with green tomatoes, but the Monster insists on red. When he returns with the correct toll, Little Goat is allowed to pass. Medium Goat (Chivo Mediano) approaches and the Monster charges him seven pieces of cheese. Medium Goat brings the cheese and crosses the bridge. Finally, Big Goat (Chivo Grande) arrives and both characters cross the bridge for ice cream.
The Dog (Perro) is trying to prepare hamburgers in the playroom, but the Female Cat (La Gatita), Little Rat (Ratoncito), and the Wolf (el Lobo) are all too busy to help. This prompts the Dog to read the story of The Little Red Hen (la Gallinita Roja). Mama Bear (Mamá Osa) plays the hen. Appropriately, the Female Cat, Little Rat, and the Wolf each play characters who refuse to help the Little Red Hen making hamburgers. Once the hamburgers are ready, the hard-working Little Red Hen teachers her companions a lesson by refusing to share. Having learned from this story, everyone pitches in to help the Dog.
When Baby Bear (Bebé Oso) and the Girl (Niña) find the Dog (Perro) sleeping, they decide to write their own version of The Little Red Hen (la Gallinita Roja). In their version, Armadillo proves to be a frustrating choice for the role of the Little Red Hen by constantly revising the story in progress. Worst of all, he chooses apples, grapes and bananas to top off his hamburgers, rather than tomatoes, cheese and lettuce. When the hamburgers are ready, no one wants to eat them! At least, not until The Three Goats (Los tres chivos) arrive-they'll eat anything.
Mama Bear (Mamá Osa) isss restored to her role as the Little Red Hen (la Gallinita Roja), but this time she decides to make apple empanadas. Discovering she only has one of the nine apples she will need, she calls on her friends to help out. The Female Cat (la Gatita), Little Rat (Ratoncito) and the Wolf (el Lobo) all have a difficult time bringing home the correct fruit from the stand. Because no one brings back apples, the characters decide to eat fruit instead.
It's back to school for the characters when Mama Bear (Mamá Osa) attempts to lead the class through counting lessons. The trouble is, every time Mama Bear begins counting to nine, something goes wrong. First, Armadillo and Little Rat (Ratoncito) get in a tussle over paper. Then two squirrels arrive to perform a chant that leads the entire class outside. Just as order is restored, The Three Goats (Los tres chivos) arrive with pizza, and Mama Bear's pupils all feast. It's a tough day at work for Mama Bear, who finally gets to count to nine.
The Three Bears (Los tres osos) and The Three Goats (Los tres chivos) meet again for the "What Is It?" ("¿Qué es?") game show. After an enthusiastic greeting breaks the glasses of Medium Goat (Chivo Mediano), he has trouble identifying things. He thinks a pencil is a banana, for instance, and mistakenly identifies the Female Cat (la Gatita) as a dog. The Three Goats eventually win the grand prize, a book, only to have Big Goat (Chivo Grande) eat it.
On a dark and stormy night, the Dog (Perro) reads the mysterious story of "The Hands" ("Las manos"). The Female Cat (la Gatita), Little Rat (Ratoncito) and the Wolf (el Lobo) are chosen to act out parts. In the story, each of the characters rouse themselves to raid the refrigerator, but mysterious hands appear to steal their food away. All of the characters are frightened by the story and are relieved at its end. When Mama Bear (Mamá Osa) serves cake, the story seems to come to life as the mysterious hands appear once again! The Dog reveals that "The Hands" are actually the two squirrels in disguise.
Four trains-an old one, a red one, a big one and a little one named Miss Train (Señorita Tren)-decide to have a race. Miss Train, clearly an underdog, is the slowest train out of the starting gate. Soon after the race begins, the old train stops to eat cake with The Three Bears (Los tres osos) in the forest and becomes ill from all he has consumed. Then the red train purchases a book from The Three Goats (Los tres chivos) and wrecks while trying to read and race at the same time. Finally, the big train pulls over to rest, but accidentally falls asleep. Miss Train, slow but steady, wins the race.
The Three Goats (Los tres chivos) are going on a vacation, using little Miss Train (Señorita Tren) as transport. But first they must pack their things. Ten books, ten shoes and ten grapes put a strain on Miss Train, who cannot go forward. After the weighty cargo is ditched, the journey begins. But time and again, The Three Goats must return for items they have left behind-cake, ice cream and milk. The Three Goats reach the end of their trip; then Medium Goat (Chivo Mediano) and Little Goat (Chivo Pequeño) reach the end of their tempers when they discover that Big Goat (Chivo Grande) has eaten everything.
With a handful of grapes, Armadillo becomes Super Armadillo! Faster than a speeding train, able to leap three bears in a single bound, Super Armadillo arrives on the scene in his somewhat clumsy manner to save other characters from peril. With a little help from Salsa, Super Armadillo returns a hamburger to the Girl (Niña) and a carton of milk to Little Rat (Ratoncito), and unties Mama Bear (Mamá Osa) from a railroad track. All is the dirty work of the Wolf (el Lobo), who is vanquished in the end.
Mama Bear (Mamá Osa) and Baby Bear (Bebé Oso) board Miss Train (Señorita Tren) for a ride back home, but their journey is cut short by three masked bandits-actually the Girl (Niña), Little Rat (Ratoncito) and the Sock (Mosca)-who are out for ice cream. The bandits have a difficult time obtaining the ice cream, but finally manage to uncover it on their third attempt. Salsa tells the Sheriff, played by Papa Bear (Papá Oso), who then challenges Little Rat to an ice-cream-eating duel. When Little Rat gives up, the Sheriff wins.
The Monster (el Monstruo) decides to buy shoes for the big dance, but first he must find a pair he likes. The shoe salesman entertains the Monster with a funky rap about the many varieties of shoes for sale. After a green and blue pair of shoes prove to be ill fitting, the salesman produces a red pair of dancing shoes that fit the Monster perfectly. At the masquerade ball, the Monster dances with the Girl (Niña) until her purple hair is revealed and scares him away. He leaves a shoe behind. The Girl searches for its owner and finds it to be the Monster.
The Three Bears (Los tres osos) go up against The Three Goats (Los tres chivos) for a third time in an elaborate production of "¿Qué es?" ("What Is It?"), but a case of the hiccups is giving Papa Bear (Papá Oso) fits. The Monster (el Monstruo) tries to help Papa Bear by scaring him with-of all things-a monster disguise, but it fails. In the ensuing competition, Papa Bear attempts to cure the hiccups by breathing into a bag, holding his breath, blowing up a balloon and, finally, drinking water. The bears come from behind and win, but the real winner is the hiccups, which still plague Papa Bear.