Watch Grimm S02e18 🎉

In Season 2, Episode 18 of , titled " Volcanalis " (originally known as "Ring of Fire"), the supernatural procedural takes a literal turn into the volcanic. While detective Hank Griffin is away on "vacation"—a plot point written in because actor Russell Hornsby was recovering from an Achilles tendon injury—Nick Burkhardt and Captain Renard must team up to stop a fiery ancient threat. Episode Plot Summary

The killer is revealed to be Volcanalis , an ancient, non-Wesen fiery entity that protects sacred volcanic rocks. It is powerful enough to have been blamed for the destruction of Pompeii.

Grimm Season 2, Episode 18: Volcanis - Fangs For The Fantasy

Nick, Monroe, and Captain Renard lure the creature to a warehouse where they use liquid nitrogen to freeze it solid, allowing a vengeful witness to shatter it with a sledgehammer.

In Europe, a pregnant Adalind Schade meets with Stefania Vaduva Popescu, the Queen of the Schwartzwald Roma, to determine the value of her royal baby. Meanwhile, Juliette Silverton struggles with a "flood" of returning memories of Nick, eventually focusing on his proposal. Where to Watch