Runar had led the hunting party that wiped out half a pack of Saber-Tooth Tigers led by one male named Soto, an act that earned Runar Soto's hatred. Runar and his tribe after used the saber-tooth skins as clothing.
Runar and his tribe stopped to make camp near a waterfall, where he watched over his infant son Roshan with his wife Nadia, as the baby attempted to walk. Runar held his wife and son close, as they were the most beloved people in his life, embracing them. Unbeknownst to Runar, however, a pack of saber-toothed cats, led by Soto, was watching over the humans, plotting revenge for the deaths of some of their own. He later was given his son back, and gifted Manny with a necklace.