Realizing that they may be targets of a police stakeout, Mark and Digger prepare their outlaw distilling teams for the worst. Howard drinks the last bottle of decades-old rye elixir, forcing Tim to recreate his dad's unwritten recipe or lose it forever.

In the season finale, Mark and Digger scramble to clear evidence of outlaw activity -- only to discover the law is one step ahead. Mike and Jerry build a column still that runs two proofs at once. In his final run, Kenny lends a hand to a legend in need.