"Supernatural" season 9 is going on a three-week hiatus, so we have some spoilers and a promo video to keep you occupied until the CW series returns! Find out the latest spoilers about "Supernatural" season 9, as well as the schedule and titles for the next few episodes leading up to the finale. Sam and Dean will capture Gadreel while Castiel refuses Metatron's offer in episode 18.

"Supernatural" season 9, episode 18 is titled "Meta Fiction," and won't air until Tuesday, April 15th. The synopsis reads: "METATRON OFFERS CASTIEL A DEAL - Metatron (Curtis Armstrong) attempts to get Castiel (Misha Collins) to join forces with him. Still furious with Metatron, Castiel (Misha Collins) refuses, which sets a surprising plan in motion. Meanwhile, Sam (Jared Padalecki) and Dean (Jensen Ackles) capture Gadreel (Tahmoh Penikett). Thomas J. Wright directed the episode written by Robbie Thompson (#918)."

Watch the promo video below!

Here are the titles and schedule for the rest of the episodes of "Supernatural" season 9:

Episode 19 - "Alex Annie Alexis Anne"; April 22.

Episode 20 - "Bloodlines"; April 19.

Episode 21 - "King of the Damned"; May 6.

Episode 22 - "Stairway to Heaven"; May 13.

Episode 20 will be a backdoor pilot for the spin off series of "Supernatural," titled "Bloodlines." The CW paranormal series, previously known as "Tribes," was created by Andrew Dabb and boasts a cast including Lucien Laviscount, Nathaniel Buzolic, Danielle Savre, Melissa Roxburgh, Sean Faris, Stephen Martines and Brynce Johnson, IB Times reports.

According to the publication:

The spinoff will be introduced during "Supernatural" to set up the story's plot line. According to reports, "Bloodlines" lead character Ennis Roth will meet Sam and Dean during a crucial point in Ennis' life. As the Winchester brother's attempt to take down a paranormal force in Chicago, the two will run into Ennis and essentially pass their monster-hunting baton down to the "wannabe-police officer" as he tracks down the supernatural force responsible for killing his fiancé.