Purity

An all black coated wolf pack that lives far up in the northern pine forests believe in very brutal things. They strong believe that any white pup that is born into their pack brings great sins and evil to it, so to save themselves and the pups afterlife soul they burn in fire, and dace around it to free the tainted spirit.

But one black pregnent wolf from aother pack gets adopted into the pack, and she doesn't find out their secrets before its to late.