当父亲确诊阿兹海默症后，克里斯将镜头对准家人。他与父亲踏上回溯过往的公路之旅、探索人际连结的科学，并了解如何借此巩固记忆。他们重游充满意义的故地、拜访熟悉的面孔，将一切拍成家庭影片，重温即将消逝的珍贵回忆。这段穿越澳洲的旅程，成为父子情感的深刻见证。
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...
神秘瘟疫摧毁了地球并把大部分的人类变成了吃不饱的嗜血动物，多年之后，一个离群索居的漂流者在猎杀变异人的途中在一个废弃的警察局里与一群幸存者偶遇，然后不情愿地同意尽力保护他们帮助他们逃往庇护所。
