Veteran fisherman Uncle Chen, in order to find out the truth about the shipwreck accident ten years ago, takes young crew member A Yuan back to the disputed waters. Amidst the shipwreck wreckage guarded by a giant deep-sea creature, they retrieve navigation records and ancient stone tablet fragments, stop Boss Li's illegal fishing, and reach a brief reconciliation with the deep-sea tribe in the storm, ultimately realizing that humanity should awe the deep sea.