Michael and KITT must guard a mysterious and volatile new isotope, "Cernium," inadvertently created in a Foundation laboratory. Feared international terrorist Phillip Nordstrom plans to steal the isotope during its transportation and layover in Chicago. He intercepts Michael with "The Juggernaut," a specially designed mobile battering ram that smashes into KITT and destroys the trusty Trans Am. Separated from the Knight Foundation, Michael enlists some new friends to re-build a better KITT and retrieve the missing isotope. This bring's the introduction of some new features to KITT, Super Persuit Mode (SPM), Emergency Breaking System (EBS) and...the "C" button. Also the introduction of a new permanent character, Reginald Charles the Third (RC3).

original airdate--September 20,1985