Soto is the main antagonist of Blue Sky's 1st animated feature film Ice Age and a posthumous antagonist in its sequels. He is the deadly and dangerous leader of his pack that was made up of Zeke, Oscar, Lenny, and Diego. Soto was infatuated with revenge and planned on taking out a group of Neanderthal tribesmen and eating Roshan, their youngest child, in vengeance for the murders of his fellow pack members, including his mate and cubs, done by the hands of the humans.