Blood, brains and biohazards are all in a day’s work for the crime scene cleaners of Britain and the USA. Once police have finished their investigations and the bodies have been removed, these highly trained specialists are called in to clean up the devastation left behind. With bodycams capturing their every move, we follow them under the police tape into some of the most graphic and disturbing scenes imaginable, while forensic experts examine the footage and offer insight into what might have happened.