In a word, I'd describe this episode as fast-paced and action-oriented. Lots of nice nods to classical mythology-- my favourite was Theresa, Jay, and Archie's trip to the underworld to retrieve Ulysses' lyre and the panaroma of the Elysian fields. Great quality animation, a nicely developed storyline and some humorous lines to boot. Jay fans also get a nice treat as we get a first (although brief) glance at his ancestor, Jason.
A very entertaining episode. Worth setting up the VCR and taping for later :)