Detective Nick Posh discovers an international smuggling ring - German grenades hidden in Scottish whisky casks-a silent attack targeting multiple federal buildings across the United States. With no room for error, he must dismantle the operation before the public catches on and mass panic erupts. Joined by his good friends and professional colleagues both domestically and abroad, Posh's work is certainly cut out for him. It's a do-or-die situation in more ways than one. Cask is a high-stakes thriller where every lead could detonate before it's worked. When politics, greed, and power are present, every move could be his last. The only thing more volatile than the truth is treason.