Return of Zion takes place in UC 0090, where Zeon remnants are taking part in a large-scale operation to consolidate their forces and retreat into space to join Char Aznable’s own nascent Neo-Zeon. The game focuses on a group of Haman’s Neo-Zeon in Africa called “Nightshade,” as they link up with other remnant groups and representatives of Char’s Neo-Zeon to ultimately return to space. Return of Zion’s character designs are handled by prolific Sunrise designer Toshihiro Kawamoto, and fits well into the aesthetic he established with his work on Gundam 0083. Playing up the anime style, each mission is actually bookended with an opening and ending sequence, and even a “Next Episode” card.

After the death of Vice Commander Haman Karn, Zeon control was thrown into chaos. Supplies, ammunition and weaponry to the forces remaining on Earth were cut off and they were forced into difficult battles on all fronts. The year is Universal Century 0092. Zeon Forces from around the world have decided to withdraw. This is the story of their heroic battle to retreat.