In this chilling sequel to 28 Days Later, the inhabitants of the British Isles appear to have lost their battle against the onslaught of disease, as the deadly rage virus has killed every citizen there. Six months later, a group of Americans dare to set foot on the isles, convinced the danger has come and gone. But it soon becomes all too clear that the scourge continues to live, waiting to pounce on its next victims.

When an English cartographer arrives in Wales to tell the residents of the Welsh village of Ffynnon Garw that their “mountain” is only a hill, the offended community sets out to remedy the situation. The film is based on a story heard by Christopher Monger from his grandfather about the real village of Taff’s Well, in the old county of Glamorgan, and its neighbouring Garth Hill. However, due to 20th century urbanisation of the area, it was filmed in the more rural Llanrhaeadr-ym-Mochnant and Llansilin areas in Powys.