Walkout is the true story of a young Mexican American high school teacher, Sal Castro. He mentors a group of students in East Los Angeles, when the students decide to stage a peaceful walkout to protest the injustices of the … Alexa PenaVega, Michael Peña, Yancey Arias, Laura Harring, Efren Ramirez, David Warshofsky, Holmes Osborne Added on HBO 2022-06-07.