During a top-secret dive into the deepest canyon of the Pacific Ocean, Jonas Taylor suddenly comes face to face with the largest and most brutal predator in the history of the animal kingdom. As the sole survivor of the mission, Taylor is haunted by what he has undoubtedly seen but still cannot prove – Carcharodon megalodon, the massive mother of the great white shark. Branded as a madman suffering from post-traumatic stress disorder, Taylor refuses to forget the depths that nearly cost him his life. However, it takes an old friend in need to bring him back into the water, and a talented female submersible pilot to dare him to return in a state-of-the-art mini-submarine. Diving deeper than ever before, Taylor will confront a terror he never imagined, and what he finds could turn the waves blood red until the end of time. MEG is about to surface. When it does, nothing and no one will be safe.