Someone is knocking at the door - DVD

DVD Film - Directed by: M. Night Shyamalan. Would you be willing to do the impossible if it was the only way to save the world? The family vacation in a cottage drowned in the woods, far from all civilization, went great. Until the four of them showed up on their doorstep. They look like members of a crazy religious sect, trying to explain to the poor holidaymakers that the world as they know it will end unless they save it. They don't really ask for anything complicated. All it takes is a volunteer among them who will willingly do for the salvation of the planet what no one would willingly do. Sounds crazy, right?