Plot summary

Tiger Chen (Tiger Chen Linhu) is the sole student of his elderly master's Ling Kong Tai Chi style. Whilst Tiger excels in the physical aspects of his training, Master Yang struggles to instill in Tiger the philosophical aspects, and fears for his character. Tiger harbors a determined ambition to prove the martial effectiveness of the style, as he competes in the local Wulin () contest. In between, HKPD officer Sun-Jing Shi (Karen Mok) has been leading an investigation into Security System Alliance (SSA), a private security firm owned by the mysterious Donaka Mark. Suspected of hosting an illegal fighting operation, Sun-Jing turned one of Donaka's fighters into a mole, but he was discovered and personally killed by Donaka. Despite the setbacks, Sun-Jing wants to continue investigating, but without any evidence, Superintendent Wong (Simon Yam) had the case closed. Believing the evidence will eventually come through, Sun-Jing secretly continued investigating Donaka and things would change with Tiger's involvement.Short of a fighter, Donaka searches for his next great fighter and took notice of Tiger during the Wulin Competition. Seeing Tai Chi as something different and noticed the innocence within Tiger's eyes; he sent an invitation to Tiger for a job opportunity at SSA. Tired of his menial courier job, he took a chance and was flown over to Hong Kong for the job interview. However, once he arrived at the interview room, he was attacked and he subdued his opponent; it was a test of his combat ability. Donaka welcomed him and offered him great financial rewards for joining his underground fighting ring; Tiger refused as it would compromise his honor by fighting for money. However, Donaka had other means of persuasion.The following day, investigators had arrived and had the temple declared structurally unsafe; Master Yang was to be evicted and the temple demolished for new real estate development. Unclear of the legal system, Tiger sought help from Qing Sha (Ye Qing), a paralegal friend and love interest to Tiger. With Qing-Sha's help, she found a means to save the temple: historic preservation and government protection. However, even if the law prevails on their side, the temple's dilapidated status required emergency repairs within a month's time and a lot of money; Tiger relented to Donaka's offer and fought to preserve the temple.Tiger excelled in his combat challenges. With every battle, he won large sums of money, but also evolved and enhanced his combat abilities with every match. His path allowed him to repair the Ling Kong Temple, quit his courier job, lavish his parents with presents, quickly rise in the Wulin Competition, and seem to have a budding romantic relationship with Qing Sha. However, with every battle, the challenges became more brutal and darkening Tiger. Master Yang wasn't a fool and noticed a change in his combat abilities and warned him the dangers of not changing his ways. Unfortunately, Tiger didn't see a problem with his situation and continued to enjoy life; little did he realized Donaka had corrupted him.In a recent two against one fight, Tiger won the battle, but developed a ruthless attitude and brought that mentality into the Wulin Competition. Breaking the rules of friendly and honorable competition, he viciously injured his opponent and resulted him disqualified from the competition. Master Yang witnessed what happened on TV and was shocked at Tiger's ruthlessness. When Tiger came to train with Master Yang, it was an aggressive fight than a respectful spar. Despite his advanced age, Master Yang held his own and was forced to use his internal chi energies to palm-strike Tiger, repelling him away. Still loving his student, he continues to tell Tiger to return to the path of peace, but Tiger rejected his master's good intentions and left him saddened. Things worsened when he found out his petition to gain historical protection for his temple was rejected. A disappointed Qing-Sha revealed Tiger's vicious actions from the Wulin Competition swayed her director's decision. Enraged, he demanded the director to explain herself and she reasoned that his actions don't reflect the claimed honor and nobility of his temple's philosophy; she's favoring new real estate development instead.Still raging from what happened, Tiger demanded a fight and Donaka had Tiger face the killer mercenary, Uri Romanov. Using his rage, he quickly defeated Uri and could've killed him, but he refused; Donaka appeared in a black mask to help finish off Uri. Tiger had had enough of underworld combat and wanted to leave, but Donaka laughed at Tiger, thinking he had a choice of leaving. Realizing he's trapped, Tiger decided to reach out to the police. However, unknown to Tiger, Donaka had every aspect of Tiger's life recorded and Gong (Donaka's camera man) reported on Tiger's plan to defect; Donaka had a contingency plan.Now "secretly" working with the police, Donaka set up a private tournament for a death match. Sun-Jing secretly trailed Tiger's escort to reach to the secret tournament, but her car was violently knocked over by a truck. Sun-Jing survived her attack and she then contacted her squad for assistance and discovered Superintendent Wong commanded communications to prevent anyone from investigating into particular frequencies that may lead to Donaka; Wong works for Donaka. Several hours before the tournament, a brief video revealed the private life of Tiger, shamefully revealing how exposed his life is and how Donaka manipulated him into underground combat and corrupted him as a person. Enraged, Tiger tried to attack Donaka, but was subdued by a taser. It was then Donaka revealed his vision for Tiger: exposing his life as he slowly corrupted and making Tiger a killer before a live audience.In the death match, Tiger was to face Gilang Sanjaya (Iko Uwais); now fully awakened to his reality, Tiger refused to fight, but challenged Donaka for a match instead. The match was over after HKPD stormed the compound and arrested everyone, including Wong; Donaka escaped capture. Back at home, Tiger was visiting the temple when he found Donaka. They had their own private death match as Donaka demanded Tiger owing him a life and telling Tiger to show him his true nature. Tiger was losing at first, but he re-embraced his Tai Chi training and gained the upper-hand. Donaka forced Tiger's hand as he pulled out a knife and stabbed Tiger in the stomach. It was then that Tiger used his internal powers to repel Donaka. Suffering from internal damage, Donaka was pleased to know Tiger had it in him to be a killer, but died shortly after.Some time later, Tiger repaired his relationship with his master and Sun-Jing has been promoted to Superintendent. Tiger reached out to both Qing Sha's law firm and the real estate developers and all three parties reached a compromised agreement: the temple will be part of a historical cultural village. Not only will the government will protect the village, but now tourists can come and visit, to learn more about the 600 year history of the Ling Kong Temple. Finally putting that chapter of his life away, Tiger tells Qing-Sha that he intends to return to the city and open his own Tai Chi school, to continue on the legacy of the Ling Kong Tai Chi.