Charlie is intelligent, attractive, charismatic, comes from the bottom but has reached the top in the world of finance. He has it all: women, prestige and money. However, he decides to carry out a risky financial operation that ends up destroying his promising career and sentences him to 3 months in prison. When he gets out of prison, a job as a substitute teacher in a public school abandoned to his fate will become the biggest challenge of his life. As a result, Charlie will not only discover that thanks to his unconventional ingenuity he could change the lives of a group of teenagers at social risk, but he will also find love in Ana, a simple and idealistic teacher. "The substitute Teacher" is a story of second chances and also a reflection of the dreams and limitations from the Chile we are building.