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 evi…

射电天文学家在深海中发现了一个可能与外星人接触的神秘信号。在几次可怕的表现威胁到他们的信仰之后，团队必须为在终极邪恶中生存而战。