Hank and Wu find a solution to stop Renard while Nick is still fleeing. Adalind gets a phone call that throws her into the middle of everything. Monroe's and Rosalee's babysitting adventure turns interesting as they witness Diana's power.
A menacing new Wesen terrorizes a young family; Capt. Renard is shocked by an unexpected guest; Diana has news for Monroe and Rosalee; Eve looks for answers relating to her strange visions and side effects after being healed by the stick.
Nick (David Giuntoli) and Hank (Russell Hornsby) join Wu (Reggie Lee) to investigate a bizarre murder in a local park. Elsewhere, Capt. Renard (Sasha Roiz) continues to deal with a ghost from his past. Meanwhile, Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) visit the doctor to see if Diana's (guest star Hannah R. Loyd) premonition is true. Back at the loft, Adalind (Claire Coffee) finds a very weak Eve (Bitsie Tulloch) in the tunnels and mysterious drawings scrawled on the walls.
A grisly murder in a hotel leads to a guest who claims to be haunted by a terrifying creature in the night; at the Spice Shop, Monroe, Rosalee and Eve investigate the origins of the symbols on the cloth.
Rosalee surprises Monroe with a birthday getaway and invites the gang to join them; at a hotel, an employee targets Nick to avenge his father; Eve is visited by a familiar dark force; Capt. Renard spends the weekend with Diana.
A series of brutal murders lead to an unlikely lead in a nursing home. Eve goes to Adelind to see if there is a Hexenbiest way to travel through mirrors. Renard wants answers about the symbols that Diana has been drawing.
A powerful Wesen named Zerstörer arrives in Portland, planning to do something with Diana. Nick returns to the house where he solved his first Wesen case to find a solution. However, Zerstörer is one step ahead of the gang.
Nick faces off against his greatest foe, yet as it seems no weapon can defeat him. Monroe, Rosalee and Eve search for answers that may help them in the fight. Renard and Adalind try to keep Diana and Kelly safe