Grimm Season 4 Episode 13 — Trial by Fire

When an arson case looks to have Wesen origins, Nick find himself reluctantly having to ask an old foe for help. Elsewhere, Viktor teaches Adalind the effectiveness of well-played diplomacy. Meanwhile, Juliette finds herself in a confrontation sooner than expected.

Grimm Season 4 Episode 13 (“Trial by Fire”) is episode 13 of 22 in Season 4 and first aired on February 13, 2015. It runs about 42 minutes. Directed by Norberto Barba. Written by Sean Calder. Guest stars include Gideon Emery, Hank Harris and John Murray. Grimm is a Drama, Mystery and Sci-Fi & Fantasy series from NBC.