A claustrophobic survival thriller set beneath the Yellow Sea off the coast of North Korea where the pilot of a small submersible craft and a three man Special Ops team on a secret recovery mission become trapped underwater in a fight for survival. 　　译文(2): 这是一部幽闭恐怖的生存惊悚片，背景设置在朝鲜海岸附近的黄海海底。一艘小型潜水艇的驾驶员和一支执行秘密搜救任务的三人特种部队被困在水下，为生存而战。