I am a senior citizen and loved "The X-files" was a "Johnny come lately" to "Supernatural" but have fallen head over heels for the plot and Sam and Dean. Although pretty spooky it is about the brothers journey through life together. I didn't start watching until 2010 so to catch up, I bought the whole series to decipher what was going on. I think Season 4 solidifies the whole story to that point and a promise of more explorations into the future. Love it and please keep it going.