Summer Lin is tricked by her boyfriend Howard Zhou into a Shark Cage to be murdered. She is gifted a Marine Codex, unlocking marine talents. She earns treasures, pays off her family's loan, and meets Hawthorne Huo. Howard Zhou teams up with Irene Bai to sabotage her, but Summer Lin harvests rare seafood, salvages national treasures, receiving an ocean-going vessel. She saves her enemy Feng Huo, and gets together with Hawthorne Huo.
