Smallville > Smallville Season 5

The fifth season of the series is probably one of the darkest in the entire series. This season focused on many elements of Superman mythos including Jonathan Kent's death, Fortress of Solitude, Professor Milton Fine, Phantom Zone, and General Zod. The season ended on a cliffhanger which left Clark trapped in the Phantom Zone, and Lex Luthor being possessed by General Zod.