被幸运卢克抓进监狱的达尔顿四兄弟又逃了出来，这次居然逃到了加拿大，卢克远赴加拿大抓住了他们。但议员异想天开要用达尔顿兄弟做良民改造试验，由卢克负责监管。达尔顿兄弟当然贼性不改，好在有卢克在，他们是逃不掉的。

The Arkadians are a civilization that survived a great cataclysm and moved to the center of the earth, thriving under the power of their artificial sun, The Tehra, until one day it began to fail. In desperation, the Arkadians broke the ancient law and entered the Forbidden Archives to search for an answer. They used their special powers and created a messenger to the people above, naming her Arkana. She meets up with Matt and Rebecca, two ordinary kids from the surface world, Bic and Bac, two strange anteaters from Arkadia, and Spartakus, a mysterious warrior. Together they search the worlds of the strata for a way to save a people and possibly the world.

幸运卢克是一位草原骑士，日升月落，夕照霞光，总能见其驰骋的身影。幸运卢克是一位神奇的枪手，他的枪法极其精确，速度比影子都快。只要有幸运卢克的地方就决不允许有罪恶的产生。达尔顿五兄弟被困在监狱，几乎要发疯，密谋着逃出去。就在此时，律师安东尼来到监狱，并给他们带来了一个爆炸性消息。亨利叔叔死了，还给他们留下了一大笔遗产……

幸运卢克是一位草原骑士，日升月落，夕照霞光，总能见其驰骋的身影。幸运卢克是一位神奇的枪手，他的枪法极其精确，速度比影子都快。只要有幸运卢克的地方就决不允许有罪恶的产生。达尔顿五兄弟被困在监狱，几乎要发疯，密谋着逃出去。就在此时，律师安东尼来到监狱，并给他们带来了一个爆炸性消息。亨利叔叔死了，还给他们留下了一大笔遗产……