Czar was rejected by his pack as the new Alpha because of the circumstances surrounding his birth. 

The only option available to him to become the pack leader was to retrieve an emerald gem from the devil's bridge, a realm between life and death.

and only the blood of a dragon can give access to the realm.

Mara a witch runs away from her pack when she was framed up by a jealous enchantress, she must find a way to prove her innocence.

She makes a pact with Czar to help him recover the gem and he would grant her anything she desires even his soul