This would have been derivative of many similar "hunt 'em down" serial killers in countless cop shows, but the thing that set it a part - and fascinated me - was the incredibly feisty woman who turned out to the killers' last victim.
Instead of running and being a target, she hid behind trees, stalked them, and brought them down with a hunting knife (obtained by some unfortunate campers she ran into, who all fell victim to the hunters' arrows).
Apart from liking the show's compassionate take on the killers - they were clearly victims of their upbringing (reared by a serial-killer uncle) - I loved the fact that, for once, the victim turned the tables on her would-be slayers and they ended up dead instead.
So the only heroine I've found so far is fictional - how pathetic is that? I'd like to invite my readers - if I have any - to join in my search send in their suggestions for heroines (real and fictional) who could be profiled on this site.