This documentary is about the ANONYMOUS HACKERS Group. It is a sociopolitical group that has no centralized structure, hierarchy, or mission. Anyone, or any particular group, can be Anonymous. These groups operate independently to accomplish a variety of different goals.
What holds Anonymous together is the use of technology to effect social change, otherwise known as hacktivism. Most of it is well-intentioned, but the controversy is whether or not the ends always justify the means.