The Changes posits a Britain where a sudden enveloping noise emanating from all machinery and technology causes the population to destroy them. The resulting upheaval displaces many people and reverts society back to a pre-industrial age where there is a deep suspicion of anyone who may be harbouring machinery.
Contestants must compete against each other for a chance to win 0,000 in a house wired with cameras and microphones, capturing their every move for a TV and Internet audience.