On Habitat 7 Greer is captued by the Kett and later resqued by the Pathfinder. Upon Pathfinder Ryder's return to Ark Hyperion's cryo bay, he can be found receiving medical attention. He then leaves the Pathfinder team because of his traumatic experience.
- During the prologue, there is another member of Ark Hyperion named Lucas Greer. It is unknown whether the two are related or not.