Retired homicide detective Ralph Flores operates a pre‑school in the Boyle Heights neighborhood of Los Angeles. One morning he receives information that convinces him that a condemned killer, whom Flores helped convict, may be innocent. Flores has five days to either clear the man or resolve his own failings in the case. Flores is pulled back into the world of sex crimes, homelessness, drug trafficking, and political wrangling, a sharp contrast to a safe school for four‑ and five-year olds. As an outsider he has to maneuver around a justice system unwilling to acknowledge a mistake, a condemned man bent on his own destruction, and a killer's twisted scheme. Flores finds help from a retired limousine operator and a federal narcotics agent. The old detective must also juggle his wife’s emotional problems and his attraction to a younger woman.