After last week's musical, the next episode of "Supernatural" is going to be an old-school one where the Winchester brothers embark on a road trip to Connecticut to hit up some fortune.

The teaser trailer from the episode titled "Ask Jeeves" shows Dean (Jensen Ackles) handing over to Sam (Jared Padalecki) a cell phone belonging to former hunter and close friend Bobby. Dean is surprised to hear a message that says Bobby or his next of kin have been named as a beneficiary in an heiress' will, and he and Sam decide to investigate further.

"I figured we qualify. Anyway, road trip? Who knows, maybe Bobby earned us some beer money," Dean tells Sam.

But what they encounter at the house is far from a treasure chest, the synopsis teased, hinting that the Winchesters will be forced to investigate the mystery murder in the household. "Was it the colonel with an axe, the maid with a revolver, or the butler with the toilet?" the trailer asks. "The boys haven't got a clue."

"Ask Jeeves" will also not feature other series regulars such as Mark Sheppard or Misha Collins, but they will surely make a comeback in episode 7 titled "Girls,Girls, Girls."

As per the official synopsis of the episode, Sam and Dean stumble upon a demon who is running from Crowley, and before they could do anything, Rowena, who is trying to recruit followers in witchcraft, takes things into her own hands.

"Meanwhile, Hannah (guest star Erica Carroll) runs into a blast from her vessel's past, which complicates things for her and Castiel," the synopsis read.

This week's episode will also not have Dean dealing with the Mark of Cain or his dark side. But the effect of the Mark of Cain on Dean is going to be a major plot moving forward.

"You're going to see Dean dealing with this pretty much for the next chunk of the season, as he and Sam take different paths in how to deal with it," executive producer Jeremy Carver told TVLine. "While we're all very happy he was cured of being a demon, there's a lot more work to be done."

"Supernatural" airs on Tuesdays at 9 p.m. EST on The CW.