Milai and her friend Pérola, a lovely white kitten, find the yellow cat Hoplita and the puppy Batatafrita very disappointed: they want to surprise their friend Rita and don´t know what to do. Milai suggests then to throw her a surprise-party and does a plan: while she prepares the food, Pérola cares about the floral centers to beautify the celebration and Hoplita e Batatafrita go find a place for the party. When they find other friends, make sure they invite them too: that way, Zu, Pimpong and Tobias also join the plan.
Meanwhile, Hoplita e Batatafrita discover some places close to ideal, mas finally rejected, one vecause it was near a bee-hive, the other near a dumpster, another one because of the close range of the shrewd and vain fox Inácia, and finally because of the threat of Murcão himself, that chases his friends to a tree, from where they scare him away by throwing him pine-cones with precision.
Finally they find a good place and tell Rita, that knows nothing of the surprise. That night all go to sleep with a clear conscience about the fulfilled duty, except Tobias that doesn’t know yet what to give.
The next day, they gather all to go to the party, carrying the beautiful flowers from Pérola and the delicious food made by Milai. Hoplita and Batatafrita take Rita there, but when they get there it´s raining “cats and dogs”. But Zu doesn´t give up and, takes the magic pencil and draws a beautiful and sunny landscape in a wall. The friends get in at once e give Rita a big party. Joy is in everybody’s heart and finally Tobias gets the chance to sleep.