北京电影制片厂第一部以环保为题材的儿童片，讲述一群孩子为了保护珍稀动物而和偷卖珍禽的罪犯作斗争的故事。。Tom is grounded for lying to his mom about dragons. While stuck at home, the Riders need help in the Hidden World. Tom must figure out a way to help his friends without getting into any more trouble.。