Question: what is the saddest episode of supernatural?
Answer: 3 Dark Dynasty (10.21) 4 Do You Believe in Miracles (09.23) ...  5 Sacrifice (08.23) ...  6 Death's Door (07.10) ...  7 Swan Song (05.22) ...  8 Dark Side of the Moon (05.16) ...  9 All Hell Breaks Loose (02.21) ...  10 In My Time of Dying (02.01) ...