An American agent enters Germany and then works with Hogan's people to get a German officer out of Berlin.
Masquerading as German workers, Hogan and the crew have made elaborate and foolproof plans to blow a German cannon factory sky-high - but their plan backfires when Newkirk winds up being drafted into the German army.
A new anti-aircraft radar system designed by an English woman has to be destroyed.
The Allies give Hogan a solo mission: attend a baron's party as Commandant Klink. Burkhalter gets involved when he learns that Klink's name sits at the very top of the guest list.
After Nick and Lulu are caught by Alvin having sex in the LSP conference room, Lulu tries to gain back some of her credibility by hosting a dinner party with Nick to convince her co workers that they are a legitimate couple.