While reporting to the chief that someone is getting the teenagers drunk, the Good Cops learn that they are under investigation by Internal Affairs, but even that won't stop them from uncovering 'The Russian Water Trick.'
Internal Affairs tests the mental and physical abilities of Sledge, Nicky and Perkins and then assigns a psychological evaluator to monitor their activities. The Good Cops show the evaluator what real detective work is, as they infiltrate the local High School.
After the death of Jean Deaux, a somber Sledge untangles his last words and uncovers a lead that could finally break open the case of the drunk teenagers, but it means they'll have to go undercover, deep undercover.
After Sledge and Perkins are imprisoned by Internal Affairs, Nicky has to pull out the "big guns" in order to set them free. Freedom however, does not stop Sledge from fighting through an internal crisis of conscience that leads to a most unwelcome visitor.
George Robinson and the Good Cops declare an alcohol prohibition and no one is safe from their Elliot Ness-like cleanup of Ocean Point Port. Things go swimmingly until an unlikely coincidence creates a rift that could tear the Good Cops apart, forever.
After suffering through the destruction of the Good Cops as we know them, Perkins discovers that George Robinson has not only broken the Good Cops, he has ruined Sledge's home life as well. A plea for help from Sledge's struggling wife forces Perkins to intercede and save the man he once knew.
Distracted by the lust of Mrs. Sledge, Perkins reconciles himself with their past relationship while Nicky stumbles upon an idea to save Sledge. The broken but inspired Good Cops call upon the talents of lab expert Ben Beasley, who leads them to the most powerful alcoholic beverage in the world, 'Svalbardian Devil Root.'
With the Svalbardian Devil Root in hand, Nicky and Perkins call upon their old friend Thatcher to help find a way into George's trust just long enough to spike his drink. An internal battle ensues as Sledge and George fight across the land for control of the remaining Good Cop.
This is it. Thatcher's dead, the teenagers are drunks, and it's up to Nicky, Perkins, and Sledge to save Ocean Point Port once and for all. Who will live? Who will die? Are you seriously still reading this? It's justice time!