The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them: where would they go, if they got the chance - and what would they need to surviv...
探员丹尼（本·阿弗莱克 饰）在调查一系列银行劫案的过程中，发现一名如幽灵般的危险男子，惊觉案件和此人竟与其失踪女儿有关！在灵媒戴安娜（艾莉丝·布拉加 饰）的协助下，他尝试追查并拆解箇中谜团，却反让二人被该男子追捕。急于寻回女儿的丹尼顷刻堕入难以自拔的境况，然而事情发展将彻底超出意料，颠覆他对身边一切的认知…
