The work tells the story of London's downfall as a result of the violent power struggles of its worldwide gangs and the unexpected power vacuum that resulted from the assassination of the head of the most influential crime family in the City of London.
As gang chaos threatens London and leads to disorder in the city, investors ally with the gangs in London to help them strengthen the criminal empire after the city is destroyed.
In season 3, former police officer Elliot turns into a high-level gangster when a shipment of contaminated drugs causes major chaos and results in many deaths.