Forced to lie low, Nick hides in Bud's repair shop, while Juliet/Eve continues to feel complications after being healed.

The kidnapper turns out to be a Wesen of the Cuegle type, that claims he has visions of the babies' futures, and only eats those who will grow up to do truly terrible things.

A murder and the discovery of a body in a park lead Nick and Hank to an insect Wesen that emerges from the Earth every seven years for 24 hours.

Back in the loft, Adalind, thanks to Diana, finds an injured Eve in the tunnels, where she has painted the wooden shard's cloth symbols in the walls during a trance.

A violent murder puts Nick and Hank on the tail of an alp, a Wesen that eats dreams and seems to be using a cheap hotel as hunting ground.

Meanwhile, Eve, Monroe and Rosalee try to decipher the symbols on the cloth that covered the wooden shard, discovering it is an astronomical map that points to a future date.

Eve decides to stay at the Spice Shop, but she's once again attacked from the other side of a mirror and Monroe and Rosalee find her unconscious in the morning.

Nick, Hank and Wu investigate the case of a poacher who claims his friend was killed by a tree-like monster, and they soon find more unexplained disappearances in the same forest.

Nick, Hank and Wu investigate a series of murders, one of which in a local nursing home, which leads Monroe and Rosalee to inform them about euthanasia practiced for Wesen with dementia, who would Woge uncontrollably.

Nick follows her using the stick and they end up in a strange land resembling the Schwarzwald (Black Forest), where Wesen and primitive humans fight and cannibalize each other.

Meanwhile, Monroe, Rosalee, and Eve deduce the stick is actually a long-hidden shard of wood from Zerstörer's staff, that might have belonged to many historical figures in the past.

Twenty years later, Kelly and Diana are continuing the Grimm legacy, fighting alongside Nick and Adalind as well as Monroe and Rosalee's triplets.