Ben, while he does have his memories back, does not return home. His next leap takes him somewhere on a plane over Russia in 1978.

　　在那个充满战争和巫术的时代，所罗门·凯恩（杰姆斯·鲍弗 James Purefoy 饰）在无尽的贪欲和杀戮之中迷失自我，险些沦为魔王的傀儡。大难不死的所罗门回到故乡英格兰的一所修道院里，本想就此过上远离杀戮生活的他，在神父的指示下踏上回家的路。此时，外面遍布杀戮与抢掠，孤身上路的所罗门险遭不测，幸被准备举家迁往美洲的克鲁索恩一家所救。在与克鲁索恩一家相处的过程中，所罗门感受到家人的温暖与信任。一天清晨，克鲁索恩一家遭遇一群邪恶武士，他们杀死了克鲁索恩先生和两个儿子并抢走了克鲁索恩先生的女儿梅瑞蒂斯（蕾切儿·哈伍德 Rachel Hurd-Wood 饰），克鲁索恩在临死之前，祈求所罗门救出女儿，并告诉他只有救出梅瑞蒂斯，他的灵魂便才能得到惩救。立誓永不杀戮的所罗门为了救出梅瑞蒂斯同时惩求自己的灵魂，他不得不重拾战剑……　　本片根据美国作家罗伯特·霍华德（Robert E. Howard）1928年创作的同名小说改编。

制作团队表示，他们在重新阅读《哈利·波特与混血王子》时产生了一些好奇和启发，原著小说里有一段是讲述邓布利多教授带着哈利·波特，一起观看来自家养小精灵郝琪的回忆，描绘了赫普兹巴·史密斯以及收藏的赫奇帕奇和斯莱特林遗物的线索。这部自制电影就从这个点延伸出去的拓展剧情。 早在2016年时就由独立制片工作室「Tryangle Films」筹划拍摄，靠着集资网站来募款筹措资金，虽然一度被拥有《哈利波特》系列版权的片商华纳兄弟以侵犯权为由要求下架，但经过制作团队多次的沟通和协商后，华纳终于确定全面放行。

　　Ben, while he does have his memories back, does not return home. His next leap takes him somewhere on a plane over Russia in 1978.

When FBI Agent Zack Stewart is killed, Agent John Ripley takes over the three cases he was working on, hoping one will lead to his killer. The first involves gangster Joe Walpo and Ripley finds his hideout through Joe's girl friend, Connie Anderson. Joe is killed but it is established he was 400 miles away when Stewart was murdered. The next involves a car-theft gang which Ripley breaks up by using one of the gang, Vince Angelino and his wife Julie. The last case involves Kate Martell, the victim of an extortionist who threatens to kidnap her child unless she pays him $10,000