When her parents are murdered, Nneka encounters the Queen of the Coast who offers to help her in revealing the identities of people who killed her parents. This changes the course of her life as she sets out on a mission of revenge.

一个现代王国Illyria的公主Sam，性格叛逆，是王位的第二继承人。正当Sam对王位的漠不关心值达到人生新高时，她惊讶地发现自己有超能力，而且属于一个长期以来偷偷摸摸保护全国和平的秘密组织。影片聚焦Sam的历险：她加入了这个属于最高机密的训练项目，目的是训练皇室的次子女们来肩负拯救世界的任务。