Supernatural is one of the few shows I’ve watched faithfully since the beginning and, in this case, that’s a mighty long time. After 15 years, several attempts to end the series, and 20 more episodes, the CW will say goodbye to the Winchester Boys.

When the show debuted in 2005, George W. Bush was president, my 14 year old daughter was not yet born, and nor were most of the the legion of fans that now snatch up Supernatural merchandise at stores like Hot Topic. The show was a slow-burner, gradually picking up fans of all ages as the seasons progressed. It became a consistent ratings winner for the CW, one of the most binge-watched shows on Netflix, and defines the term “cult following.”

Often creepy, sometimes funny, yet always entertaining, Supernatural followed the life and times of Sam and Dean Winchester, two brothers who inherited the family business: Killing monsters, demons, ghosts, and other nightmarish creatures from myth and legend. With a killer classic rock soundtrack (Kansas’ ‘Carry On My Wayward Son’ was their unofficial theme song) and their reliable black 1967 Chevrolet Impala, they traveled the country on their hunts, creating a vast mythology along the way.

In case you weren’t already mourning the show’s passing after just 20 more episodes, The CW’s promo for Season 15 is here to to aid in your emotional breakdown.

Blakwall’s cover of “Knockin’ on Heaven’s Door” is the soundtrack of the promo that takes us back to the beginning: Baby Sam Winchester’s nursery the night a certain yellow-eyed demon altered the lives of the Winchesters Forever. If you’ve never seen the show and are planning to watch it, I won’t spoil the decade and a half of obsessive viewing you’re about to commit to. Luckily the promo doesn’t reveal to much, either.