When the episode begins, most of the Weiss family has been disbursed. The father, Dr. Weiss, is in a Polish ghetto. The mother and her daughter are still back in Berlin--though this is not to last for long. The son, Rudi, is pragmatic and has run--living by his wits and avoiding capture. The only odd part of all this is that the conquest of Poland isn't really talked about--sometime between part 1 and 2 it occurred.
Through the show, more change occurs: The daughter is raped by a gang of German thugs. She subsequently loses her sanity and is sent to a nice hospital, Hadamar. What the family didn't know is that this is an extermination center--the place where they first carried out the so-called 'final solution' on a small scale--killing the mentally and physically disabled. While all of this was handled in a sensitive and non-sensationalistic manner, it is still difficult to watch---have some tissues handy.
Rudi is still on the run, though he picks up a girlfriend who now accompanies him. They are there to witness the invasion of Russia by the Germans--though the Russian army refuses to believe it.
Mrs. Weiss is deported to the ghetto in Warsaw and finally sees her husband for the first time in several years. However, the ghetto is being starved--and folks are dying as a result. They soon fall in with partisans on the Eastern front.
As for Karl Weiss, he's still in Buchenwald. He is moved from a job as a tailor to the rock pile after a rules infraction. He'll soon die, and really doesn't mind it, though he's moved off this murderous job after his wife agrees to sleep with an officer to save her husband's life.
The episode ends with Dorf on an inspection of the German liquidation squads in Russia. He is not pleased with the inefficiency and unprofessional behaviors of a death squad--so the commander instructs him to personally get his hands dirty and kill. So continues Dorf's slide to subhumanity.
All in all, an episode as troubling, emotional and realistic as the others--and an important reminder of our horrid past. Also note that although IMDb lists the series as having four episodes, on the DVDs there are five--so the last small portion of episode two (involving Dorf) actually occurred in episode three.