"Supernatural" season 9, episode 16 airs tomorrow night - find out where to watch "Blade Runners" online via a free live stream of the CW for "Supernatural" season 9, episode 16. Can Sam and Dean get to the First Blade before Abaddon?

If you can't make it to a TV by 9pm EST tomorrow night to catch "Supernatural" season 9, episode 16, click here or here to watch "Blade Runners" online via a free live stream of the CW.

If that doesn't work, the CW also offers episodes on their website to watch online after an episode airs.

The official synopsis for this week's episode reads: "Sam and Dean get help from a former member of the Men of Letters to locate the First Blade, after Crowley falls off the wagon and starts injecting himself with human blood. To make matters worse, a demon betrays Crowley and tells Abaddon that the Winchesters are searching for the First Blade."

According to IB Times, Crowley has become so addicted to human blood that he's forgotten his purpose on Earth, which is to find the First Blade. The First Blade is the indestructible weapon used by Cain to kill his brother, Abel. It was fashioned from the jaw of an animal and is said to be the only thing capable of killing a Knight of Hell, IB Times reports.

The Winchester brothers will enlist the help of a former member of the Men of Letters (Kavan Smith), which is a secret organization of scholars who research the supernatural, in order to get the First Blade before Abaddon.

"Supernatural" season 9, episode 16 airs tomorrow night, Tuesday, March 18 at 9:00 PM EST on the CW.