A side-story to the Gundam Wing series, The Last Outpost takes place around the same time that Lady Une is promoting peace to the colonies. On a resource satellite called MO-V, a revolutionary Gundam project is underway. Unlike previous Mobile Suits, the G-Unit is an experimental Gundam designed to operate in multiple environments, like space and water. But this project is attracting unwanted attention, as MO-V is attacked by a secret organization within the Romefeller Foundation.