On a snowy day, Lin Xiaoman, a poor young woman, takes home a three-legged golden toad statue discarded by the wealthy merchant Zhou Wancai. To repay her kindness for giving it shelter, the toad guides her to gather medicinal herbs to save her mother and bestows upon her a Heart-of-the-Spring Stone, reviving a dry well and turning spring pearls into silver. Xiaoman remains content with what she has and stays true to her principles, but Zhou Wancai, driven by jealousy, forcibly seizes the treasure and even splits the spring stone into twelve pieces, hoping to make a fortune every day. Unexpectedly, a black pearl appears and begins settling accounts for every unscrupulous deed he has committed. A blizzard seals the roads, leaving the entire village without food or water. An abandoned old spring canal, unused for many years, becomes everyone's hope for survival. Can greed lead a man back to the right path, and where will the miraculous spring water ultimately flow?