TV 12 Years Without Mercy 12 Years Without Mercy /10 by 0 users Details Casts Posters Images Title 12 Years Without Mercy Alternative Titles Twelve Years Without Pity First Air Date 2008-11-12 Last Air Date 2008-12-17 Number of Episodes 6 Number of Seasons 1 Genres Documentary, War & Politics, Networks , Casts Adolf Hitler Plot Keywords , Self (archive footage) Adolf Hitler