There is an important MacGuffin that two or more characters want. One character manages to get his or her hands on it, and now he or she needs to escape. Unfortunately, now everybody is after his or her ass, and they won't stop until they get it. In fact, they probably will get it, in which case, the hunter now becomes the hunted, as this character must flee, before the others snatch the MacGuffin back from them. Examples: