Spike has prepared a party for his son Tyke. He allows Tyke to have a little taste of his birthday cake and promises him that it will be the best birthday ever. Tyke's puppy friends arrive and they go to play in the bouncy house. Meanwhile, Tom fights and chases Jerry in the house and beats him up in the piano. They take the chase outside and they accidentally destroy the bouncy house and Tyke's cake. This causes Spike to get angry at them for ruining everything he had been planning for weeks and forces the two to be in charge of the festivities while he barbecues the food. Tom tries to entertain the puppies by using Jerry to do arm farts, but Jerry is able to amuse them by using an air pump to make balloon animals. Tom tries making balloon animals himself, but ends up getting his arms tied up instead. Jerry laughs at Tom, so Tom uses the pump to turn Jerry's tummy into a balloon. Jerry floats all the way to space but then burps, sending him all the way down and bumping into Tom, burying Tom in the process. Spike says to the puppies that food won't be done for some time, and forces Tom and Jerry to play party games with the puppies. Jerry plays "Pin the Tail on the Donkey" by having the puppies pin the tails on Tom. When getting ready to have the puppies destroy the Piñata, Jerry tricks Tom into using himself as the Piñata. Tom then plays "Toss the Horseshoe" with them but Jerry survives being hurt while Tom gets hurt by Spike. Spike then gives the puppies their lunch while Tom and Jerry fight over eating but Spike forces them to entertain the puppies. Tom puts up a magic show but Jerry ruins it for him. Spike then forces the two to make a cake for Tyke. Tom and Jerry make a cake but Jerry accidentally burns it until Tom uses the fire extinguisher to extinguish the burnt cake. Tyke sees all of this and starts to cry. Tom covers Tyke's mouth and shushes him, but Tyke bites Tom's hand. Tom screams in pain and he throws Tyke to the other puppies, knocking the puppies like a bowling ball hitting bowling pins. This causes a food fight between Tom, Jerry and the puppies. However, this pleases Spike who calls it another successful party for his son.
