Don't Cry, Little One - Episode 18

Elara, a rare shewolf, sacrificed her wolfsoul to save her lover Alpha Kalen, then was betrayed by rivals who left her for dead. Presumed gone, Kalen mourned her for five years. But Elara survived, lost and broken, wandering with their son Finn as lowly wolfslaves. Years later, Kalen finds the ragged pair and treats them harshly, until the wolftooth token, bloodbond, and fragmented memories reveal the truth: this broken woman is his lost mate, and Finn is his son.