Caspar Enkido was present when first contact was initially made with the Homo Insipiens of Earth, and after having earned their Electromagnetic Acceleration Doctorate from The Collective of Cormellon they have joined the expedition to return and bring the venture full circle. Having long lived by the tenets of Doctor society, Caspar decided to join the cause of the Critical Earth Expedition for the benefit of the primates. Now, with the native primates still in captivity on Earth, Caspar and the Doctors venture to fulfill the promise of release that the Homo Insipiens have reneged.