The season begins one year after the averted Apocalypse. Dean is living a quiet, domestic life with Lisa and Ben until Sam, who has been back for a year, suddenly reappears. The season is defined by several complex, overlapping storylines:
The sixth season of (2010–2011) marks a pivotal transition in the series' history. It was the first season following the conclusion of creator Eric Kripke’s original five-year plan, and it introduced Sera Gamble as the new showrunner. Season Overview & Plot Arcs Supernatural - Season 6