Brother's Day was a terrorist organization whose only known goal was to stop synthoids from overthrowing humanity.


Brother's Day was an organization that wanted to prevent machinery from taking over. To maintain a low profile, they used the front of a charity that gave toys to children, while in reality, they smuggled weapons.

Eventually, Brother's Day planned on destroying the government's highest synthoid lab, the Gnosis. They threatened Marcus Edmund, a member of the Zeta Project, into posing as Eli Selig to obtain the Gnosis' coordinates and then fool perimeter defenses around the Gnosis.


Appearances and references

Batman Beyond

  • "Zeta" (Mentioned Only)

The Zeta Project

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