As the process will result in his death without intervention, the King has contacted the Followers of the Apocalypse, to ask for help but they do not have the capabilities to perform brain surgery nor the knowledge of cybernetics that is needed. He is suffering from neural degeneration as a result of his aging brain. The King says his dislike of hats may come from the fact that hat rhymes with rat. Rex does not like rats, or hats, according to the King. He later reached Freeside, where he came under the ownership of the King, who loves him dearly. He survived the destruction of Denver and the harsh wastelands, eventually becoming Caesar's companion for a time, but was lost in battle. Sometime before the war, he was cybernetically enhanced and turned into a cyberdog - serial no. He was born as a regular dog in 2072 and served in the Denver Police Department. (Law Enforcement Officer) Support Model' that has been around since pre-War times. Part German Shepherd, Rex is a 'Cyber-Hound Mk III L.E.O. 2 Interactions with the player character.
