Carlisle Enlil first became aware of the Universal Primate Captivity Crisis while on a remote 5-year study abroad venture at Maffei Local Cluster College of Gemini where they earned their Metaversal Science Doctorate . Having always lived within the Doctor caste, Carlisle was raised in an environment of empathy and good will, and those values led them to join the Critical Earth Expedition. Now, with the native primates still in captivity on Earth, Carlisle and the Doctors venture to fulfill the promise of release that the Homo Insipiens have reneged.