Sam and Dean discover that the table in the Men of Letters house (the one that lit up like a Christmas Tree when the angels fell), has an ancient computer attached to it. They figure if they can get the computer on, they can track the angels. Who better to call for help than the best IT girl there is, Charlie? While moving the massive computer, they dislodge a hidden hexbag that unleashes a magical green-webbed wall. Sam and Dean break through it and discover the one and only Dorothy from Oz. She had trapped herself and the wicked witch in the web years ago to stop the witch from finding the key that would open the gate that connected their world with Oz. With the wall broken, a massive and magical fight ensues that threatens to destroy the Men of Letters house.
Season 9 Episode 4 of Supernatural was watched by 2,190,000 viewers, resulting in a 1.10 rating in the 18-49 demographic.
Sam Winchester is a college student bound for law school, determined to escape his family's past - unlike his older brother, Dean. Ever since they were little their father has been consumed with an obsession to find the evil forces that murdered his beloved wife, and recruited his two young sons to help them. They have grown up as hunters of the supernatural. Sam escaped this way of life after high school, and now has a happy life with his girlfriend, Jessica, and a promising future career. Dean, however, stayed behind with his father to join him in his "hunting".
After Dean arrives for Sam's help when their father goes missing, Sam must join his brother to find him. His one weekend trip to search for the missing John Winchester becomes an ongoing quest after a horrible tragedy ruins any thought of a happy life for Sam.
The two brothers, bound by tragedy and blood to their mission, travel across the country encountering terrifying and dangerous forces most believe to be nothing but superstition and folklore, such as the Lady in White, the Indian beast known as the Wendigo, Phantom Travelers who cause plane crashes, Bloody Mary, and many more.