Throughout the world, bowling balls come out of the Daydream state the second humans are not in the vicinity. At the Splat Bowling Alley, manager Craig Bowell decides to run a little scheme, by changing the inside materials of each bowling ball, to make a profit. Furious, the bowling balls decide to run a quest to the Splat Warehouse, to re change their insides. An average but well respected bowling ball, 10, decides to take matters into his own hands and with his faithful companion 8, they ask for help from their most dreaded foes: the Pins. Joined by Prince 3rd Pin of the First Lane and Major 9th Pin of the First Lane, the four heroes embark on a journey. Will they make it to the Warehouse? But back at Splat, trouble is already brewing.
Prince John's biggest fear? Becoming King, and everything to do with it, from the sheltered life, to someday having to get married. Celia, a lady knight, minus the 'Lady' if she can help it, is not looking forward to coming of age and attending the High Ball which she thinks is nothing more than a market for single girls. The two have hated each other since childhood, but when the stress gets to John and he does something drastic, Celia's the only one who can help.