Fans of The CW hit show "Supernatural" are in for an unusual episode as they will be seeing a talking Chevrolet Impala for the fourth episode of the fantasy horror series.

In "Baby," Cartermatt reports that the famed car driven by Dean (Jensen Ackles) and Sam (Jared Padalecki) in all their paranormal gigs will take center stage. The Impala will be narrating the Winchester boys' road trip as they encounter and defeat the evil creatures. The episode will be seen fully from the car's perspective, which will be a huge change from the usual storytelling techniques used for the long-running series.

Meanwhile, last episode, Sam and Dean located Castiel (Misha Collins) locked in a bunker. They finally realized that the only way to remove the spell on him was for the caster to reverse it. They then set out to find Rowena (Ruth Connell). At that time, the witch was holding a meeting with the others she managed to recruit out of the Grand Coven. But when Crowley (Mark Sheppard) sent a demon assassin, the chaos that ensued allowed the brothers to grab her.

When they reached the bunker, however, Castiel was gone. Rowena then took the time to remind Dean that Sam made a deal with her that they themselves would kill Crowley in exchange for lifting the Mark of Cain. Meanwhile, they found the angel was about to kill a young girl. They managed to stop Castiel, but he turned to Dean and started to beat him. Rowena then reversed the spell, as Sam was holding a gun to her head. As Castiel recovered, the witch made her escape.

Elsewhere, Crowley was trying to turn Amara (Emily Swallow) into an ally. He soon found out, however, that she was a primordial force and more powerful than he expected. Entertainment Weekly reports that the girl was confused with the world she's now in and she was perpetually hungry. All the demons in Crowley's employ could not satiate her. As she continued to eat, her physical self also transformed. At the end of the episode, she was already a teenager.

"Supernatural" airs Wednesdays at 9 p.m. on The CW.