We left nothing, but our paw prints in the snow

I led the perfect life with my family. But one harsh winter we're forced to steal a sheep from the humans living near by. In revenge the humans come after us, forcing me away from my family, my pack. In a state of panic I enter another pack's territory, and end up becoming one of them. I landed myself in a mess. The alphas of that pack died, and Mate, whom I'd met at the pack, and I are the only couple, and so the only ones who can take over the post of parents. Leading the pack through the seasons and time, we end up in the same situation as my old pack. We are forced to steal. And humans aren't keen on sharing. They come after us, and we are forced to take action.