The awakening of an underwater volcano brings a forgotten ship back to the sea’s surface. Chou Yi-bai miraculously wakes up in a sleeping pod after 68 years, but his memory remains in 1955. Chou Yi-Bai returned to Chou’s property, which was different from what it was. He encounters Chou Mo, his grandson. The two are forced to live together despite their contradicting personalities and habits. What they would never expect is a series of trouble waiting for them. On the other hand, boxing champion Lu Fei finds herself unable to erase the image of an unfamiliar man from her head. As the nostalgic piano notes play, the frozen memories are about to thaw. What mystery was buried in the sea trenches, and what has morphed the Chou family’s destiny?