Family. Something that Chase doesn't know about, at least not anymore. Living a life where his parents are dead and his foster parents physically and mentally abusive him. Covering up the past was hard enough, but the worst part was trying to cover it up and repair his damaged state in front of those who you thought would reach their paws out to help you but instead, ignore you. Like everything's. And now constantly being hated by the rest of the pups. After Chase disappears the paw patrol haven't been the same.