Jerry gets the kids up at dawn to relive his youth, demonstrate underwater ballistics and turtle fishing while Kay gives Jim one day to build a "girlie" gun for her granddaughter.
Jerry takes on the impossible task of a 1,000 yard pistol shot, pulling Jim into an epic and unprecedented custom build while the girls take on decorating Kay's bare walls with gun art.
Kay and Jim build a commemorative custom pistol to honor their legendary father while Jerry gets Lena prepared for any emergency through tire shopping and bug out bag building.
Lena pulls her Uncle Jim into a hot-rodding project on her competition pistol while Kay tries to get Jerry to undo decades of hoarding by cleaning up his shop.
While Jerry and the kids take on Zombies, Jim proves all custom double guns don't have to come from England when he builds a Safari worthy rifle in his Louisiana shop.
Jerry, Lena, and Kay pile into the RV for a road trip but things don't go according to plan when the motor-home breaks down while back home Jim and his son build a rifle for competition.