"The Substitute" is a 2006 action film directed by Robert Radler. The story follows a former mercenary, played by Tom Berenger, who takes a job as a substitute teacher at a troubled high school. He aims to protect a student who is being targeted by a gang while also trying to inspire the students to turn their lives around. As he navigates the challenges of the classroom, the substitute teacher uses his combat skills to confront the gang members and restore order. The film combines elements of action and drama, highlighting themes of redemption and the impact of mentorship on young lives.