During the famine of the 1960s, a young girl named Cai Cai awakens a supernatural ability: the wooden door in her backyard leads directly to a vegetable market in 2013. With her family constantly short of food, she can make crops grow rapidly and take her siblings to collect discarded fruits and vegetables from the market. She also occasionally receives help from kind passersby. Her father, Jiang Zhenhua, carefully guards their secret and trades goods between the two eras, setting up a stall to supplement the family's income and provide food, clothing, and education for his children. Along the way, the family faces suspicion from villagers and schemes from others, but they overcome every crisis by standing together. Staying true to her principles, Cai Cai cultivates crops, supports her siblings' education, saves money, ensures her family's well-being, and helps her neighbors. Through her special ability and hard work, she carves out a stable and prosperous life during those difficult times.