The Karate Kid Episode 13 - A Little World of His Own Episode Title:A Little World of His Own.Episode Description:Somewhere in the South, the shrine has come under possession of a shy black boy named Walter, who uses the power of the shrine to shrink actual items such as railroad cars and add them to his model collection. In doing so Walter accidentally uses the shrine to shrink the trio. A tiny Daniel and Miyagi must work to give Walter a confidence boost to ask a girl out to a party in the hopes of reverting to their proper sizes. However, Walter is using the shrine for more than just scale models, as he also uses it for revenge on two bullies; and Miyagi warns that not only is such overuse damaging the shrine; vengenance is unhealthy.