Intergalactic warrior Star Butterfly arrives on Earth to live with the Diaz family. She continues to battle villains throughout the universe and high school, mainly to protect her extremely powerful wand, an object that still confuses her.

该剧聚焦卡桑德拉·奥斯汀（凯莉·霍威 Keeley Hawes 饰）早年和晚年的生活，围绕着文学之谜展开——卡桑德拉以焚烧她的妹妹和密友简·奥斯汀（帕齐·费伦 Patsy Ferran 饰）的信件臭名昭著。