Chen Bidada, a middle-aged technology tycoon, exchanged identities with high school student Gao Wenming because of an accident. In order to get his body back, Chen Bidada racked his brains and had various collisions and conflicts with high school students represented by his son Jiang Yu. Inspired by Chen Bidada, Jiang Yu rekindled his dream; inspired by Jiang Yu's innocent heart, Chen Bidada regained his original intention and began to learn to take on the responsibility of being a father. Chen Bidada and Jiang Yu gradually became best friends, jointly won the championship of the high school student science and technology innovation competition, and led the whole class to participate in the cross-country race, reawakening the fighting spirit and team spirit of all teachers and students. However, with the awakening of Gao Wenming, the crisis of Chen Bidada's career suddenly intensified. Chen Bidada was in a dilemma and had to tell Jiang Yu the truth: In fact, I am your father. Precious dreams, innocent friendship and longing for fatherly love were all shattered by this plain sentence in an instant. Jiang Yu could not accept Chen Bidada's deception and use of himself, and Chen Bidada did not know how to explain to the sad Jiang Yu. Time waits for no one. The two had no time to resolve the misunderstanding, but had to join forces again. In the crisis, Chen Bidada accidentally learned about his son's ideals, emotions and desire for fatherly love. Chen Bidada finally woke up: he realized his responsibilities as a father and a scientist. In order to protect his son and for the mission of a scientist, Chen Bidada chose to save everyone at the cost of himself. At the last moment, the true feelings between father and son were revealed. Just when Jiang Yu finally called Chen Bidada "Dad" for the first time in his life, Chen Bidada's body also lost its breath. Everything returned to calm, and life continued. However, Jiang Yu seemed to have grown a lot. His innocent heart remained unchanged, but he had the courage and ability to face himself and take responsibility. And Jiang Yu's friendship with Gao Wenming will continue.