Ep 4. The Big Empty

In episode 4 of Supernatural season 13 named "The Big Empty", the story follows Sam and Dean Winchester, who are in search of Jack, the son of Lucifer, and Castiel. The episode begins with Jack waking up in an unfamiliar place, only to realize that he is in a void - a place where nothing exists. Despite being lost in a place with no purpose, he somehow manages to create a voice in his head that guides him.

On the other hand, the Winchester brothers are trying to locate Jack and Castiel, but all their leads are dead ends until they happen to find a person who claims they have been experiencing strange dreams about Jack. Sam and Dean are skeptical but decide to follow up on the lead.

Though their lead seems promising, Sam and Dean are unaware that their brother, Castiel, is also in the void, and they are all in grave danger as they encounter a new enemy. As they proceed further, they confront their own inner demons and fears. They meet a (description of supernatural creature) who holds valuable information about their friends' whereabouts in exchange for the life of another creature.

As they navigate further into the void, they discover the dangerous entity that resides within, known as the Big Empty, which has been devouring souls for centuries. The Big Empty is a creature of terrifying power, capable of erasing an individual's existence from all planes of existence. With such a grave threat looming over them, can the Winchester brothers rescue their friends and save themselves from the Big Empty.

In this episode, the writers have created a fascinating narrative that explores the depths of the void, where emotions, fears, and nightmares are amplified. It delves into the characters' psyche and showcases their vulnerabilities, which makes them relatable to audiences. The scenes and sets in the void are eerie and stunning, and the new monsters introduced leave the audience in awe.

Overall, Supernatural Season 13, Episode 4, "The Big Empty" is a thrilling and riveting episode that proves to be one of the highlights of the series, leaving the audience on the edge of their seats as they witness one of the most epic showdowns in the series.