Blockade was a resident of the alternate future known as the 31st Century, or Earth-691, and an inhabitant of the planet of Haven; a world controlled by mutants. He was member of a group of renegade mutants known as the Nine
. The eight other members were Bat-wing, Bear, Blaster, Rhodney
, Mindscan, Rancor
(leader of the group), Side-step
, and Shaddo
. While on the planet of Haven, Blockade and his comrades were part of an ongoing civil war with the "Human Resistance."