Karl Thomasson, a skilled mercenary, goes undercover as a high school teacher in Brooklyn to investigate the murder of his brother, who was killed while trying to stop a carjacking blamed on the Brotherhood gang. As he delves deeper, he discovers a complex plot that threatens the lives of his brother's daughter and his own.

The Substitute 2: School's Out
A former soldier, driven by a desire for revenge, infiltrates a high school by becoming a teacher, using his new role to get close to the one responsible for his brother's death in a gritty urban environment.