NBC has released sneak peeks of Grimm’s season 5 premiere episode titled “The Grimm Identity”. In the clip, Nick explains to Hanks what happened, and Hank talks with Wu about more deaths. Source: Flicks And The City
https://youtu.be/MKUV1oKH7zQ
Grimm Season 5 Clip “Hank tells Nick about more deaths”
https://youtu.be/Z5BIAQFOff4
Grimm Season 5 Clip “Nick explains what happened to Hank”
https://youtu.be/_ahXVhCOTU4
Grimm Season 5 Clip “The aftermath of Juliette’s death”