Relentless is a movie starring Sydney Sweeney, Elpidia Carrillo, and Mariana Novak. An American mother searches for her daughter who was kidnapped by human traffickers in Central America. Actors who played in the movie Sydney Sweeney, Elpidia Carrillo, Mariana Novak, Courtenay Taylor, Lauren Shaw.You are watching the movie Relentless produced in USA, El Salvador belongs.