Cronus Nash has long been tenured in the field of Aerospace Engineering but began to grow tired of the monotony before seeking the challenge of joining in the Doctors' primate liberation efforts. As a senior expert in their field at the Stasis Stellar Fleet, Cronus dropped their post without delay upon learning of the Critical Earth Expedition. Now, as their mission takes them to Earth, Cronus 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.