When glaciers swallow the world at a tsunami-like speed and the land is sealed by thousands of meters of ice, the embers of human civilization can only breathe in the deep sea.
Lin Yi, who was once an ordinary commander of the "White Parrot" nuclear submarine, accidentally crashed into a space-time rift at the bottom of the Pacific Ocean before the advent of the Ice Age. The black whirlpool tearing apart the deep sea not only spewed out Jurassic mosasaurs and future mechanical sharks, but also caused "myself" in the parallel world to drive the same submarine and stare covetously in the water of another dimension.
In the deep sea shrouded in nuclear winter, he transformed his submarine into a one-man fortress, with a robotic arm digging into the seafloor rock formations to build a base, using geothermal heat to cultivate algae, and surviving by hunting prehistoric creatures. But the threat to survival goes far beyond the behemoths - the remaining forces of various countries covet his submarine modification technology, the unknown civilization under the ice is peeking through the cracks, and the destruction code carried by another "Lin Yi" is penetrating into every submarine pipeline along with the seawater from another dimension.
From the sudden crisis of routine cruise to the solo battle in the deep sea after the glacier blockade, Lin Yi must defend the "White Parrot" in the turbulence of time and space and unravel the connection between the rift and the Ice Age. Because he gradually discovered that he in all time and space was being pushed to his destiny by the same force - either becoming the key to saving mankind, or turning into a sacrifice in the deep sea grave.
When the gears of the mechanical shark shattered the shell of the submarine, when the giant teeth of the mosasaurus tore through the ice, and when another "self" pressed the nuclear explosion button, Lin Yi's hand that clenched the joystick was already covered in the blood and ice of the deep sea.
