In '12 Rounds 3: Lockdown,' a police officer is seeking revenge against a villainess who murdered a fellow officer. The officer engages in a cat-and-mouse game with the villainess, putting both his career and family at risk. As the tension escalates, the officer must navigate a low-budget scenario and confront his own personal demons.

In 12 Rounds, a police officer named Danny Fisher must complete 12 difficult tasks within a time limit in order to save his kidnapped girlfriend. These tasks involve encounters with a sadistic terrorist who seeks revenge on Fisher for the death of his brother. As Fisher races against the clock, he must navigate through dangerous situations and solve moral dilemmas to outsmart his adversary and rescue his loved one.

A police officer finds himself tied to a chair and forced to play a twisted game of revenge after an encounter with a vengeful criminal. With his loved ones' lives at stake, he must navigate through various challenges, including a time bomb, a dead body in a car trunk, and a cat-and-mouse chase with the criminal.