Gruesome horror about a group of American twentysomethings whose Mexican holiday takes a grisly turn. When a German holidaymaker begs the travellers to help find his brother, who went missing exploring an ancient Mayan temple, the group agrees to offer their assistance. Unfortunately, the mercy mission turns into a desperate fight for survival as the tourists discover that something deeply unpleasant is waiting for them in the ruins. Adapted from the novel by Scott B Smith.