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The Underground was a group assembled by Cable to oppose the activities of the third installment of the Weapon X Project.
Equipment: None known.
Transportation: None known.
Weapons: None known.
- No special notes.
- No trivia.
- 8 Appearances of Underground (Mutant) (Earth-616)
- Media Underground (Mutant) (Earth-616) was Mentioned in
- Images that include Underground (Mutant) (Earth-616)
- Team Gallery: Underground (Mutant) (Earth-616)