Axel Parker has long been dedicated to their studies in AI and Machine Learning but has always held an interest in the Universal Primate Captivity Crisis and has now become committed to a missionary in the Doctors' liberation efforts. A child of the Zealot caste of Apskellion Space Apes, Axel was left behind in a conflict with the Doctors and was taken into their care and raised as one of their own, but waits for the day that they can break free and return to their own people. Now, as their mission takes them to Earth, Axel 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.