As Sorrelkit, she saw Darkstripe secretly talking with ShadowClan's deputy, Blackfoot. To silence her, Darkstripe fed her deathberries. After recovering under Cinderpelt's care, she reported the incident to Firestar, resulting in Darkstripe's exile from ThunderClan. Later, in the Great Battle, Sorreltail battled Darkstripe, ensuring safety for her kits after his retreat.