Sommer Shepard, a tenured purveyor of the Electropharmacology field, has participated in several primate retrieval operations across the New Frontier and has now committed to their liberation efforts on Earth. Having always lived within the Doctor caste, Sommer was raised in an environment of empathy and good will, and those values led them to join the Critical Earth Expedition. Now, as their mission takes them to Earth, Sommer and the Doctors seek to confront the Homo Insipiens for their failure to free their captive primates as they had promised to do so long ago.