Chemistry professor Ma Yuteng traveled through time and became the son of the director of a bankrupt battery factory. In order to fulfill his promise to the original owner, he must make the Leiteng factory public. In the face of internal and external troubles, he checked the accounts to establish his authority, eliminated old production lines, overcame technical difficulties, developed China's first lithium battery and built his own production line. He rejected foreign monopoly, cooperated with domestic manufacturers to develop mobile phones and chips, smashed the business war conspiracy, and finally achieved the listing of the factory, achieving both career and love harvest.