When her neighbor is shot and killed in his hunting blind, 66-year-old widow Gertie Johnson seizes the opportunity to move on with her life by investigating his death. Gertie is abetted (and hindered) by her grandson Little Donny, man-hungry best friend Cora Mae, and word-of-the-day challenger, Kitty. It doesn't help that Chester's death has been ruled an accident by the sheriff of this backwoods community in Michigan's Upper Peninsula. Or that Sheriff Blaze Johnson happens to be Gertie's son. Whether it's interrogating neighbors, spying, or impersonating the FBI - not to mention staying one step ahead of Blaze - Gertie will do whatever it takes to solve the case, even when the killer takes aim at her.