George and Lennie are migrant workers in California during the 1930s who dream of owning their own farm together. Lennie is large and childlike with a mental disability, while George looks out for him. They find work on a ranch near Soledad. The novel explores the American Dream amid the difficulties of poverty and discrimination faced by migrant workers during the Great Depression era. It depicts the characters' aspirations for a better future while highlighting the social and economic challenges that prevented many from achieving independence.