Apart from the classical Superman mythology, the creative team developed more of the show's take on Superman lore. In this instance, the "Smallville" team wanted to get rid of Clark's spaceship in the finale, because they felt that the characters would not realistically travel to the storm cellar that often. With the introduction of the Kawatche caves in season two, the creative team had the Kryptonian connection they needed in order to safely rid themselves of the spaceship. "Rush" provided an expansion on the mythology within the show as well, by explaining that Kryptonians had been to Smallville before Clark.