It’s revealed that Quantum is only part of a larger organization, known to the world as Spectre.
Operated by Ernst Stavro Blofeld (Christoph Waltz,) the group sabotages world governments and commits great acts of terrorism for their own benefit.
Further betrayal is uncovered when in the heat of battle, it’s revealed that Blofeld was once named Franz Oberhauser, and was James Bond’s adopted brother.
Everyone James has fought up to this point, has been working for this overarching antagonist organization.