Time flies when you're having fun and that very well applies to the new season of "Supernatural." It is already in its fourth episode and the surprises just keep on coming.

After the last episode, it looks like Demon Dean will already say goodbye and Dean will be back to his normal self. According to Cartermatt, Demon Dean would be over too quickly.

Demon Dean gone may be good news or bad news for fans but the story moves on. In the fourth episode titled "Paper Moon," brothers Sam and Dean are back to doing what they used to. But this time, they'll be following werewolves. According to the synopsis, Kate the werewolf will be back this episode.

The official synopsis for "Paper Moon" reads: "A recent string of werewolf attacks points to a surprising culprit – Kate (guest star Britni Sheridan), the werewolf Sam (Jared Padalecki) and Dean (Jensen Ackles) let live."

The trailer is already out, too, and it opens with Sam and Dean working together. However, it can't be doubted that things may not be all that it seems yet. But still, it will surely be fun seeing the brothers back in classic supernatural mode and hunting for these supernatural creatures. Additionally, it will be good seeing them reunite with Kate.

The synopsis and trailer really don't reveal much, but that's alright.  They were able to heighten the anticipation and excitement for the upcoming episode.  Besides, fans of "Supernatural" know that it has been a tradition for the show to create the greatest stories when it's near Halloween (just 9 days away). "Paper Moon" might actually be their Halloween episode so it's really something to look forward to next week.

Catch "Supernatural" on Oct. 28 on The CW.