Will Smith stars as Chris Gardner, a struggling salesman and father fighting to provide for his family in 1980s San Francisco. When Chris loses his job and his wife leaves him, he is left to care for his young son alone while battling homelessness. Despite facing significant obstacles, Chris refuses to give up on his dream of becoming a successful stockbroker. He pursues medical internships and studies hard to pass the licensing exam, ultimately succeeding through perseverance and the love and support of his son.