Login to unlock this video.
If you don't already have an account, sign up to enjoy more TVNZ content anytime, anywhere.
PGR Drew fears an unseen foe. Finn hones in on a suspect.
Life goes on for the residents of Ferndale, in New Zealand's favourite drama.
Titles, characters and all other elements are the trade marks and copyright of TVNZ or its licensors. All rights reserved. Further details available here.