The episode begins with a flashback showing a woman, the masked 'Phantom Boxing Queen,' winning a championship fight. In the present, she is now working as a 'human punching bag' at a street fair, allowing patrons to hit her for money while she stays in a circle and dodges. Her young daughter watches, wanting to try. When the woman receives her first cash payment from this job, a bystander recognizes her as 'Jax' and reveals to the shocked crowd that they were cellmates in prison, exposing her hidden past.
A woman intervenes in a confrontation, but her intervention ends in tragedy when a man is killed. She is then approached by a club owner named Jax, who offers her a job as security. However, other men at the scene mock the idea, suggesting she would be more profitable as a humiliated spectacle in their bar. They propose exploiting her toughness as entertainment for their clientele. Jax turns to her for a decision, leaving her under pressure with an offer that exploits her skills and her dignity.
Jax, a woman formerly banned from fighting, insists on returning to the ring despite her friend Mia's efforts to convince her to pursue safer business ideas like 'Boxga'. Mia argues that Jax is rusty after years in prison and hasn't made money fighting, even demonstrating her weak punches on a bag. Jax rejects Mia's offer to be taken care of, declaring she will find a coach and return to the ring, setting up her defiant quest against the odds.
A former champion with a leg injury believes his old coach can get him reinstated for professional fighting. His coach refuses, warning him not to fight underground even to settle debts. Immediately after, a debt collector arrives, mocking the man's disability and demanding repayment. The collector offers a cruel deal: fight one underground match to erase the debt, dismissing the high risk of death. When the injured man pleads for another way, the collector gives him a three-day ultimatum and threatens to take his other leg to ensure he doesn't run.
A fighter known as Snake arrives at a struggling gym demanding repayment of a debt, triggering an immediate confrontation. His thugs attack Jax, a woman at the gym, before Snake intervenes. He proposes a deal to Jax: fight in an underground match in three days for a million dollars. Her coach refuses, revealing he once took such a fight and suffered for it. The episode ends with Jax and her coach facing a critical choice: risk her safety for the money that could save their gym.
During an underground fight, a man named Jax discovers his opponent is fighting dirty by wearing brass knuckles. His coach urges him to walk away, reminding him there are no rules and even champions can be destroyed. Defiant, Jax insists on fighting, recalling his coach's past lesson about an unbeatable heart leading to unbeatable punches. The coach, while acknowledging Jax's spirit, doubts his readiness, pointing out that Jax's years in prison have left him out of practice and physically unprepared for the brutal match ahead.
A man challenges a long-imprisoned fighter, Jax, questioning if he can still fight after years behind bars. To prove his worth, he is given a test: break a bottle with a single punch. However, the challenge escalates when the man sets a higher standard, demanding the bottle shatter without falling over. This requires immense speed and precision, a feat the fighter was once famous for as 'The Phantom'. The episode ends with the unresolved question of whether Jax can still achieve this legendary move.
At an underground fighting venue, a man named Mickey confronts the ring's boss, Tiger, asking him to enter a woman, Snake, into a fight. Tiger mocks the idea but agrees to cover the entry fee. Later, Tiger privately orders his fighter, Calvin, to face a different opponent named Jax and secretly instructs him to ensure Snake does not survive the match.
The next match in an illegal underground fight club pits Calvin against a woman named Jax, sparking outrage from a concerned person at ringside who protests the unfairness. An armed enforcer silences the protest with a threat, forcing Jax and her coach to proceed. Amid heavy betting against her, Jax must enter a no-rules fight for survival, with her coach's final plea hanging on her return.
A fighter named Calvin confronts a young woman, Jax, inside a fighting ring, boasting that she will die by his hands. The spectators discuss Calvin's terrifying reputation as 'The Bull,' a man who trains exclusively in lethal 'forbidden moves' such as eye gouging and groin kicks, a style Jax has never faced. As the crowd bets against her, the fight's stakes are dramatically raised to a death pact with a tenfold payout. The episode ends with a massive bet of ten million being placed, not on Jax to win, but on the expectation of her death in the brutal match.