While the film primarily follows the adversity faced by the protagonist, Fernando, we also get a glimpse at the experiences of teens today. Fernando becomes a Spanish teacher and Will is one of his students. The film begins and ends with him, and his cameo narrative drives the growth of Fernando as a teacher. Growing up, we see Fernando is at first protected by his closest brother. As an adult, he fills this role by standing up to protect his students. However, he seems to be powerless to make a real change in his student's life, and this is where his journey through karate gives him the strengths and lessons needed to become more than a protector. In some ways, Will is also a narrative foil for Fernando, but I won't give too much away.