Scientists make mistakes and sometimes they are critical. After one of experiments performed by a group of young researchers, the world immersed into chaos. The dead people came out of their graves and now they are willing to kill those that are still alive. Many city dwellers have been murdered in a terrible way and zombies moved forward until they conquered the entire planet. The mistakes made by scientists can be fixed by scientists, so one of them has created a powerful weapon – a biological one. See how flowers and herbs can defeat zombies, when people cannot!