The Legend of Prince Valiant

S02:E27 - The Eyes of the Serpent

Valiant has a recurring dream, in which he sees a mysterious woman and a coiled serpent with golden eyes that threatens him. When asked about it, Merlin responds that sometimes a dream is ... just a dream. Merlin then sends Valiant to bear a message to Om, a spritely old alchemist (first encountered in "The Awakening", Ep. #015), who resides at a seaside village. Om welcomes Valiant and explains that Valiant must spend a month with him, while he prepares the potion Merlin has requested from him.