Okay, on the off chance that the writers of this indy garbage are reading this review, or you are currently experiencing an Atomic Apocalypse, it's important to note that the LAST PLACE YOU WANT TO BE or spend ANY TIME, in the aftermath of a large-scale nuclear exchange, is OUTDOORS!! Even two years after such an event, the damage to the ozone layer, persistent cold and latent contamination from long-term effects of fallout in the form of cesium-137 and strontium-90, would make it a really bad idea to be traipsing around the pacific northwest looking for magic flowers (honestly, don't watch this stupid movie).
Now, putting aside that obvious bit of idiocy, we can address the rest of the movie, which is so absurdly bad, that you'll pretty much want to snort rails of Polonium, rather than watch it to the end. And what an ending; holy smokes, the writers basically were like "well, we don't have any good ideas, so lets just have a magic mcguffin!". Oh, and some other reviewers have discussed, in rather tactless terms, the actresses in this movie, but if you think you'll be getting some B-movie jollies in that department, forget it, there's not even that going on in this heap.
Don't bother watching this, go play outside, or watch something else. If you want real nightmare-fuel nuclear armageddon movies, watch the brilliant but gut-wrenching "Threads", or the soul-crushing "Testament", or the still great "The Day After". If you want some fantastic B-movie nuclear holocaust action, "The Miracle Mile" is a lot of fun (for a movie about thermonuclear hellfire).
Just don't waste your time on this garbage.