'Supernatural' Season 13 Spoilers: Everyone Searches for Jack

The upcoming episode of "Supernatural" season 13 will see the Winchester brothers continuing to look for Jack (Alexander Calvert), but they will encounter an enemy.

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The previous episode, titled "Tombstone," saw Jack accidentally taking the life of an innocent person, resulting in him running away from Sam, Dean, and Castiel. Jack did not want to hurt the Winchesters, and he knew that he did not have control of his powers yet. 

While speaking to TVLine, Calvert explained that Jack is wracked with so much guilt and teased what is next for his character.

"That's going to lead him to make his next decision.... Moving forward, [he is] taking on that kind of darkness that he wasn't really ready for yet," he previewed, further revealing that Jack is trying to find out who he really is and what he is capable of. "It's about his search for his father, and his search for figuring himself out."

"Supernatural" season 13 airs Thursdays, at 8 p.m. EST on The CW.