故事設定在《電鋸驚魂》第一、二部之間，患病而絕望的約翰·克萊默（托賓·貝爾 Tobin Bell 飾）前往墨西哥進行一次危險的實驗手術，希望能奇跡般地治愈癌癥，卻發現整個手術都是場騙局，旨在欺騙最弱勢的群體。抱持著全新目的后，“豎鋸”，這位臭名昭著的連環殺手重操舊業，開始對付起這些騙子。...

A Mexican teenager whose dreams of becoming a soccer star are disrupted when his mother dies. He's smuggled across the border with the promise of a better life but is instead sold to a sweatshop in do...