一個8歲的女孩神秘地消失在卡多湖上，一系列過去的死亡和失蹤開始聯系在一起，永遠改變了一個破碎家庭的歷史。

 故事背景設定在16世紀的英國，海盜首領莫根船長（拉爾德·克雷加 Laird Cregar 飾）受到國王查理的特赦，并被任命為牙買加總督。一位年輕而勇敢、機智而英俊的年輕人沃林（泰隆·鮑華 Tyrone Power 飾）決定跟隨莫根船長前往牙買加。然而，莫根過去的下屬、狡猾而殘忍的里奇船長（喬治·桑德斯 George Sanders 飾）卻拒絕接受莫根的領導，繼續在海上進行搶劫商船的行為。為了消滅海盜，沃林率領船隊出海，在航行途中偶然與里奇的“黑天鵝號”，并和其他兩艘船發生了遭遇戰。面臨險境，沃林不得不機智地假裝前來投降并投靠里奇。通過巧妙周旋和激烈戰斗，里奇最終受到了懲罰，他的“黑天鵝號”徹底被摧毀。與此同時，貴族小姐瑪格麗特（瑪琳·奧哈拉 Maureen O'Hara 飾）對沃林從厭惡逐漸轉變為敬佩，最終產生了愛慕之情，展開了一場曲折而離奇的愛情故事。

　　In the year 2961, the time is after humanity and nature has recovered the land. A hunter named Cygnus is called to rise above his duty. He provides for Last Arc, a once nomadic band of survivors in need of food and water that is now growing scarce. The answer must be found before a group of outlandish Heretics descend upon them. Cygnus must voyage across the treacherous landscape to defend his people. Sent by Nova, the matriarch of the band, she acts based on her vision for Cygnus to find a seed of hope. The future of Last Arc is for him to discover, Cygnus ventures into a hostile landscape in search of an answer for his people. On this journey of encountering many traps and dangers, Cygnus discovers what has been hunting him is his identity.

打破白娘子傳說的固有框架，以許仕林后人許博森的現代視角切入，將千年神話與當代青年的成長、抉擇結合，把 “救母” 而非 “愛情” 作為核心主線，賦予經典故事全新的情感內核與現實思考。