Looks fantastic, but your description isn't quite right. I've corrected a few mistakes for you and you are free to use it.
Infected by radiation, three liquidators working at an atomic power station are captured after attempting to escape from the authorities. The men are taken to hospital where they overhear the doctors discussing the status of the patients and state that one of the men are a danger to themselves and to the outside world. It is necessary for him to be destroyed ...
The man and his two colleagues escape from hospital, only to find soon after that they have obtained terrifying new abilities...