Due to an accident, the middle-aged businessman Chen Bida exchanges memories with high school student Gao Wenming and must now attend school using his identity. He is surprised to discover that he has a son named Jiang Yu who is now his seat mate.

Chen Bida attempts to use his business acumen in dealing with Jiang Yu but it leads to all sorts of ridiculous situations as he realizes that adult rules do not apply to the students. Chen Bida repeatedly hits a wall with his son and cannot return to his body even though his company is in danger of being acquired. What's worse, the real Gao Wenming has woken up in Chen Bida's body. As the shocking truth behind the accident is uncovered, Chen Bida must make a choice between family or self-interest.