Trial by Fire (Grimm)

Two young employees stay late at Harrison's Outfitters, when Damien Barso (Gideon Emery) uses a key to enter the building.

The only time it behaved like a normal fire was when the young employees broke the window of the office in an attempt to escape, providing oxygen to the flames, which crisped them.

Adalind (Claire Coffee) is keen to visit Nick and Juliette to get her daughter back, but Prince Viktor (Alexis Denisof) counsels diplomacy.

To illustrate his point, he introduces Adalind to Sam Damerov (Kenajuan Bentley), with whom Sean Reynard (Sasha Roiz) has entrusted the information that he has on Kelly Burkhardt's (Mary Elizabeth Mastrantonio) whereabouts.

Nick, Hank and Orson visit Rosalee (Bree Turner) and Monroe (Silas Weir Mitchell) in the spice shop in the hope of finding a way to stop Barson.

Nick, Hank and Orson, on finding Laney's body, have decided that Barso is killing the people who can identify him.

Nick, Hank, Orson, Monroe and Rosalee, with Andy Harrison, converge on the store with the ointment-filled water guns.

Unaware of the efficacy of their water guns, he woges to kill them, and they squirt the ointment over him, sealing him inside his own fire.

Kathleen Wiedel from TV Fanatic, gave a 4.5 star rating out of 5, stating: "Talk about burying the lede!

We were also treated to a nice bit of continuity with the return of Daniel Roebuck as the (jailed) Bauerschwein arson investigator Peter Orson, last seen back in Grimm Season 1 Episode 6.

"[4] MaryAnn Sleasman from TV.com, wrote, "Grimm itself has moved beyond its beginnings as a quirky little show about the stuff of fairy tales run amok, and nowadays it very eagerly explores what could easily be seen as a parallel for cultural assimilation, immigration, and the role of tradition in an everchanging world.

"[5] Christine Horton of Den of Geek wrote, "And so begins the biestfight we're all been waiting for – where Juliette substitutes a fortune in therapy sessions for an explosive fight with Adalind that shows us what the newly-formed Hexenbiest has really got.