Hugo has escaped the cartel violence in Guerrero, Mexico. As he peacefully watches the whales swimming in the cold sea of Baja California Norte, he narrates how his 14-year-old brother was brutally murdered.

Hugo, only 16 years old with a profound sadness and no family but his father, is sure of only one thing: he must cross to the other side of the wall to meet with him, the only person he still has.