At the age of 9, Carlos arrives from Mexico to Chicago with his three brothers and his parents. The day he turns 18, his future becomes uncertain. According to US law, Carlos is now undocumented. The slightest mistake can lead him to deportation. From defeats to successes, Dreamers tells the story of Carlos—now 38 years old—his brothers, and the fate of 2.5 million people growing up in a country that still does not recognize them as its own.