Quick recap
Rambo lives on his father's ranch in Arizona with Maria and her granddaughter Gabriela, whom he treats as his own. Under the house he has dug a network of tunnels. Gabriela travels to Mexico to find her biological father, who abandoned her, and ends up kidnapped by a cartel and forced into prostitution. Rambo goes after her and takes a beating, but finds her. Gabriela dies of an overdose after the rescue. Rambo goes back to Mexico for revenge and lures the Martínez brothers to the ranch, where the house and tunnels become a trap. In the end, wounded, he sits on the porch.
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