Supernatural kicks off a new season tomorrow night, one that will find one brother going on trial and another losing his mind.

For an extensive look at what's ahead, courtesy of producers Sera Gamble and Bob Singer, visit TV Line now. Below, we've summarized the spoilers anxious viewers simply cannot wait another episode for...

Episode four will be a "turning point" for Dean, Singer teases, saying he'll stand trial in front of an Egyptian god and have to face his guilt.

The crashing of Sam's wall will lead to an episode two breaking point that causes the hunter to wonder if he's "losing his marbles for good," Gamble says.

Castiel will go on a killing spree that he believes is wholly right.

Crowley will return and we'll meet a friend of Bobby's.

One of the brothers will time travel back to 1944.

Visit TV Fanatic soon after the Supernatural premiere concludes for an in-depth review, full of the photos, analysis, quotes and more!