Episode Overview: "Trial by Fire" (Grimm S4E13) The 13th episode of Grimm 's fourth season, " Trial by Fire ," originally aired on February 13, 2015. It is a pivotal chapter that balances a high-stakes "Wesen of the Week" case with major shifts in the series' long-term supernatural dynamics, specifically involving Juliette’s transformation and a long-standing Wesen blood feud. Key Plot Summary
Bringing Orson into the fold ignites a violent reaction from Monroe due to the ancient Blutbad-Bauerschwein feud . Rosalee eventually brokers a tense peace to focus on the case. [S4E13] Trial by Fire
To stop the Excandesco, Nick recruits Peter Orson ( IMDb ), a former arson investigator and Bauerschwein who Nick arrested in Season 1 for murder. Episode Overview: "Trial by Fire" (Grimm S4E13) The
Critics generally praised the episode for its "continuity" and the payoff of the Adalind/Juliette rivalry. TV Fanatic awarded it 4.5/5 stars, specifically highlighting the fight choreography and the emotional weight of Juliette's confession. Rosalee eventually brokers a tense peace to focus
The team uses a specialized cooling ointment from the spice shop to "extinguish" the Excandesco, causing him to explode. Orson willingly returns to prison afterward. Significant Character Developments