The Go-Busters are a secret unit that originated in Neo City as a group that utilizes Enetron in their arsenals. Their original purpose was to protect the city, but it was soon deemed that they were going to be used in other manners. With the war, they were meant to be a stealth unit and spy on the Riders.
However, things changed when a group began to steal Enetron and begin making terrorist strikes in Neo City and other locations around the world. The unit is now sent in pursuit of this organization and tasked with eliminating it.
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A terrorist cell led by an unidentified individual. The Buster unit has had no luck in identifying him yet, but are at least aware of his gender, if nothing else. They siphon Enetron and use it to fuel powerful robotic warriors, while also using it to create their own Megazord fleet to cause mass damage.
They strike all over the world, and have operatives everywhere. It is a conflict of spy vs. spy now.
At the top of Glass Curtain are enhanced humans, made through a combination of Enetron and cybernetics. They are the antithesis to the Busters, who use internal DNA upgrades. They are named after the keys of a keyboard, and each possesses a different power.
Also of note: the operatives utilize codenames when on missions, and also utilize Phone Bravers for the sake of combating cyber terrorism, and to have some advanced technology to deal with pesky security and the like.