Nereus Roderick has long been tenured in the field of Astrobiology but began to grow tired of the monotony before seeking the challenge of joining in the Doctors' primate liberation efforts. Nereus has long struggled to put their Doctorate to fulfilling use, having been relegated to menial duties at the Highlander Clinic, but soon discovered the much more appealing missionary work of the Critical Earth Expedition. Now, as their mission leads them to Earth, Nereus and the Doctors will attempt to put their skills and education to work as best they can for the sake of the primates there.