<P> One year later, Sarah and her friends Juno, Beth, Sam (MyAnna Buring), Rebecca (Saskia Mulder), and newcomer Holly (Nora - Jane Noone) are reunited at a cabin in the Appalachian Mountains of North Carolina for a spelunking (caving) adventure . The next day, they hike up to a cave entrance and descend . While in the cave, Juno apologises to Sarah for not being there for her after the accident, but Sarah is distant . </P> <P> After the group moves through a narrow passage, it collapses behind them, trapping them . After a heated discussion, Juno admits that she has led the group into an unknown cave system instead of the fully explored cave system that they had originally planned to visit, and that rescue is, therefore, impossible . She then tells Sarah that she led them into the unknown cave in the hopes of restoring their relationship, but Sarah rebuffs her . </P> <P> As the group presses forward with hopes of finding an exit, they discover climbing equipment from a previous caver and a cave painting that suggests an exit exists . Holly, thinking she sees sunlight, runs ahead, but falls down a hole and breaks her leg . As the others help Holly, Sarah wanders off and observes a pale, humanoid creature drinking at a pool before it scampers away . Later, the group comes across a den of animal bones and are suddenly attacked by the creature (called a "crawler" in the credits). Holly is killed: her neck ripped out before her body is dragged away . Sarah runs, falls down a hole, and is knocked unconscious . Juno, trying to prevent Holly's body from being dragged away, kills a crawler with her pickaxe and then, startled, accidentally stabs Beth through the neck . Beth collapses with Juno's pendant in her hand, and a traumatized Juno flees while Beth begs her not to leave her . </P> <P> Sarah awakens to find herself in a den of human and animal carcasses, and witnesses Holly's body being eaten by a group of crawlers . Juno discovers markings pointing to a specific path through the caves . After regrouping with Sam and Rebecca, and realizing the crawlers' use of sound to hunt, Juno tells them the markings she discovered may point to the way out, but she will not leave without Sarah . </P>

What are the creatures from the movie the descent