In a seemingly perfect retirement community, a grieving newcomer's monstrous encounter inspires him to join a misfit crew of unlikely heroes who uncover a dark secret that proves their "golden years" are more dangerous, and they are more formidable, than anyone expects.

该剧是1982年《夜魔水晶》电影的前传，共10集，探索Thra世界。电影主要讲述数千年前夜魔水晶破裂，创造了两个种族：可怕的Skeksis——他们利用夜魔水晶剩下的力量来维持自己的生命；一群善良、温和的巫师Mystics。残忍的Skeksis致力于永垂不朽，Gelfling种族最后两个幸存者Jen和Kira必须带着水晶最后剩余的碎片踏上一段冒险之旅，修复水晶，避免毁灭他们世界的天灾发生。剧集将讲述三个年轻的Gelflings人发现了一个可怕的秘密，激发了一场反抗残暴皇帝的起义。