From IMDB:

The life of a family spanning five generations in the 20th century Europe split in half by WW2, centering around the half brothers Barnum and Fred growing up together in Oslo; Barnum with his father, Fred searching for his.

From MHz Choice:

Based on the internationally acclaimed and best-selling novel by Norwegian author Lars Saabye Christensen, The Half Brother is an evocative family saga revolving around the life of un-produced screenwriter Barnum Nilsen. His family is laden with oddities and secrets, the darkest of which happened on the same day all of Europe rejoiced over the end of WW II.

From MHz Choice you can stream the only season of this complete family saga. Each of the 8 episodes is about 45 minutes.

Past and present flashbacks weave through Barnum’s writing the story of his troubled family. There are not too many characters: Barnum and his half-brother Fred, their mother Vera, Vera’s mother Boletta, Boletta’s mother, Vera’s husband Arnold,  and Barnum’s two best friends Peder and Vivian (who marries Barnum).  Although the plot is easy to follow, there are many plot twists and turns all of which end with a genuine surprise.

Kathy found the film slow at times, but I found the relaxed pace was perfectly suited to the story of two boys trying to understand their lives.  Now days it is hard to find unusual but truly human family stories. Note however that there are rape, violence, bullying, heavy drinking and at least temporary surrender to real difficulties.

For me this series rates a DO NOT MISS!