General Tzi was the reigning warlord in Mongolia in 1933. He was known locally as "Tzi the Cannibal." He tracked his prey using ferocious trained dogs that he fed human flesh. As a result, he was very fat. Although he respected Indiana Jones, he intended to kill the archaeologist and eat his heart, for he believed that the heart was the source of a man's courage. And upon learning Jones was a university professor, Tzi also toyed with the idea of eating his brain, too.
He and his right-hand man, Lieutenant Chang, followed Jones, Joan Starbuck and Walter Granger the Flaming Cliffs on their search for the Allegorhai-Horhai, for to eat its flesh was said to make one immortal. However, he was attacked and eaten by his own trained dogs.