Miguel “Bayoneta” Galíndez is a retired boxer from Tijuana who finds himself living in a cramped flat in Finland. As his future begins to look up, a desire for redemption draws him back into the ring.

A group of veteran boxers find a young potential champion to train.

Jimmy Morales is a young fighter with a short career but with a promising future in the world of boxing. One night, after watching a movie, he witnesses a cold-blooded murder committed by Germán Corona, a known gangster of the neighborhood. Their eyes meet, Jimmy fears the worst, but the murderer runs away inexplicably. From that moment, a peculiar relationship between the boxer and gangster develop.

Mac Espinoza, a faded boxer and former contender for the world champion title, is now a door to door salesman supporting his daughter Sofia. But then someone challenges him to come back.