S4E31: No More Lifetimes

Against a vast army of the miscreations of chaos, a small force of brave fighters makes a stand to defend the magical rite that may just save their world. But their presence has drawn the attention of the army's master, an entity older than the stars and rich in whimsical cruelty, and unfortunately Tristan has completely given the game away. It falls to his companions to try and save the past - and their futures.