A young Peace Corps volunteer gets the assignment of her dreams in West Africa, but things quickly turn into a nightmare when a deadly organism strikes.
A globe-trotting couple returns home for Christmas and discovers some stowaways that bite, suck and consume flesh. Then, a man learns something is eating his heart and a desert photographer finds herself knocking on death's door.
A newly engaged man mysteriously collapses and soon faces complete organ failure, forcing him to make a choice between amputation or death. Then, a mysterious eye infection takes away a college freshman's ability to see.