A young boy and his brother are abandoned by their mother and end up in the foster-care system. Let down by everyone who should have looked out for them, the boys fall prey to the abusers they meet. Is it any wonder one of them loses his mind and develops a taste for matches and revenge? Years later, Reed Solliday, of Chicago's Fire Department, is determined to find an arsonist whose actions have just escalated to murder. With the police now involved, Reed is paired with Detective Mia Mitchell, on her first assignment since her father's death and her partner's shooting.