When disasters strike, and not just any disaster but something huge that can spell catastrophe, there will be an onset of chaos at the aftermath. The faint of heart will not survive the initial outbreak of looting and fighting. This is especially true in urban areas. The countryside is more vast, and survival can depend on nature, as long as one knows how to make the most out of it. If you live in the city, these urban survival skills will serve you well.
In cities where buildings can collapse, drainage systems can go out of hand, and desperate populations are vying for limited resources, the only way to get through it all seems to be in getting out. It may sound easier said than done, because getting out of an urban jungle requires ultimate survival skills and a will that will never give up.