Season 6, Episode #13 - Grimm: The End
Nick and the gang face off against their greatest foe yet when the Zerstorer comes looking for Diana and Kelly.
Grimm: Family Affair
Nick, his mom, Aunt Marie and Trubel battle Zerstorer as only four Grimms can.
Grimm: Thank You, Grimmsters
David Giuntoli, Bree Turner, Silas Weir Mitchell, Reggie Lee, Bitsie Tulloch and Sasha Roiz have a special message for the fans.
Grimm: Three Against One
After crossing over from the other place, Zerstorer battles Nick, Hank and Wu at the precinct.
Season 6, Episode #12 - Grimm: Zerstorer Shrugged
Nick, Renard and Adalind join forces to protect Diana, while Monroe, Rosalee and Eve uncover the origins of the stick.