Tickle's carpentry skills shine as Virginia outlaws plan a risky modification to their still; Mark and Digger take a big swing on a small ingredient that can't pass the sniff test; Josh uncovers the worst way to foster a toxic work environment.

Mark and Digger attempt to rescue a former apprentice from a moonshine calamity; an unknown competitor invades Mike's turf, forcing him to change his shine strategy; Mark and Huck bank on backwoods survival skills to fuel their high-proof run.