主演：Pete Gardner Daniel Cummings Scott Kruse 艾瑞克·斯托克林 Tammy Kaitz 羅莉凱恩 Anna Rubley Grant Langdon Blaise Bowers Mike Nelson Kurt Quinn Thea Rubley Krista Psykome Silvers Nelson Robin Zavala
簡介：A group of former military elites set out to explore an uncharted abyss, not knowing their worst nightmare is waiting for them deep beneath the ground.