I can't say I'm proud of having watched this. Only excuse: Mrs. Salad was out of the house, and I didn't want to watch anything that she might possibly want to watch down the road. No problem there.
It's not exactly thought-provoking. About the only thought provoked, in fact: shouldn't there be an apostrophe in the title word Scouts?
Anyway: Ben, Carter, and Augie are the few remaining scouts under the reign of "Scout Leader Rogers" (David Koechner). Ben is the normal one, Carter the world-weary cynical one, and Augie the gung-ho one; Carter has convinced Ben to ditch Augie and Rogers and go to a hot teenage party instead. Unfortunately, everyone's plans are waylaid due to (guess what) a zombie outbreak, thanks to carelessness at a nearby lab.
What follows is R-rated zombie comedy, as the kids try to rescue their peers and escape with their non-zombified lives. I laughed occasionally, but there's considerable smuttiness, including genitalia gags (one male, one female, only one graphic, both disgusting). A complete waste of time, yet it held my interest better than Inferno for some reason.