SARS Wars - Plot

Plot

Thailand's leading health official, Public Health Minister Ratsuda, declares Thailand free of the SARS virus and that Thailand's superior technology and medical research will prevent the disease from occurring in the kingdom.

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. A hornet carrying the virus from Africa is hit by an airliner and lands in Thailand. It flies into the open window of a farang driving a Volvo and stings the man on the back of his neck. The man becomes patient zero in the outbreak of SARS 4. He returns to his apartment building and infects others in his building. Among the zombified creatures is a giant Burmese python named Albert.

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. Liu's father, an influential businessman, does not wish to involve the police, so he turns to his old friend Master Thep. Thep, injured from his last outing, assigns his top student swordsman, Khun Krabii, to rescue Liu.

Krabii soon finds himself at the building, where he finds Liu and attempts to rescue her, but is then stopped by Yai and his men, and then they encounter the zombies.

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. She has a trial vaccine that she hopes will cure the zombies, but instead only makes their heads explode. Thep attempts to use his magic sword, but its batteries are low and it does not function.

Krabii and Liu have a romantic scene, and then they encounter a pregnant woman who has turned into a zombie and now her baby is zombie. The fetus flies out of her womb and bites Krabii, who turns into a zombie himself. He is so distraught that he tries to "kill" himself again by drinking household chemicals. In a stroke of luck, however, the combination of chemicals does not kill Krabii, but in fact cures him of the virus.

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. An animated backstory reveals how Yai found Liu's clothes. Later it is revealed through another animated segment that Liu survived the struggle with Yai, and that she and Krabii will live happily ever after.