However, far away in Africa, there has been an outbreak of a mutant Type 4 strain of the SARS virus, which causes sufferers to turn into bloodthirsty zombies when they die.

Meanwhile, Catholic school girl Liu is kidnapped by a gang led by a transvestite named Yai, who dressed as a sexy woman in a bikini and used a furry as a distraction.

Master Thep, sensing his student needs help, goes to the building, just as the Health Ministry has sent in some men, and a woman doctor, Dr. Diana, who for some reason is wearing bondage gear under her biocontainment suit.

Liu is eaten by the giant zombie python, and Master Thep saves her, and also retrieves some batteries from the snake's stomach, which had been swallowed earlier, so his sword works again.

Then the building is set to explode – part of the containment plan by the health minister – but Master Thep has a remote control that stops the explosion.

It is revealed that Liu is in fact the transvestite Yai, wearing a rubber mask, meaning that Krabii lost his virginity to a man.