The Raven - Episode 11 - The Devil You Know Let's Watch Highlander

While preparing security plans for an exhibit featuring a very expensive diamond, a former colleague of Nick is drugged by a disguised man. Worried that the security of the exhibit may be compromised, he asks Nick for help. Meanwhile, Amanda is courted by immortal Darryl Keenan--the same person who wants to steal the diamond--and he wants Amanda's help