Radio astronomers discover a mysterious signal in the deep sea that could be contact with extraterrestrials. After several terrifying manifestations threaten their beliefs, the team must fight to survive the ultimate evil. 译文(2): 射电天文学家在深海发现了一个神秘的信号可能与外星人有联系。在几个可怕的表现威胁到他们的信仰后，团队必须战斗，以生存的终极邪恶。
