It looks like Sam and Dean have found their Batcave.

A good portion of the overall Supernatural Season 8 story has involved control of major information, especially with the leviathan, demon and angel tablets. But in "As Time Goes By," Henry Winchester revealed that a secret society stored their own massive collection of supernatural knowledge.

This could be the game-changing break of a lifetime for the brothers.

Writer Ben Edlund couldn't have been happier with the gorgeous new set when he talked about it over a conference call. Certainly, it's nice to see the normally nomadic siblings have something of a home base, complete with alcohol, sharp scimitars and an enormous library collection.

Sam, whose been full of conflicted emotion over Amelia for most of the first half of the season, perked up after entering the new place and it was great to see him excited. He's always been the bookworm of the two, and watching him dive in was a great change of pace.

At the same time, Sam really put his skills to work chasing down leads and easily falling back into his old routine. The new Men of Letter's location has definitely put a fresh spark into Sam's commitment to the job, one that doesn't feel like he's being forced to do the task. He seemed to be embracing his role.

If anything, the brothers were getting along in their usual manner of Sam checking out the library and Dean checking out the girls. Although it was funny when Dean thought he was being hit on by a guy.

It was rather interesting bringing a secret society of Nazi necromancers as a sort of flip side to the Men of Letters, plus the fact that they weren't entirely defeated this time around.

Although we did get an evil blonde Harry Potter twin, as well as German accent-heavy group led by the commandant, I expected perhaps more spells and magic from them rather than pointing guns at Sam and Dean. They were certainly menacing and creepy, but I was prepared for more. That said, it looks like this Thule society is still out there and bound to pop up again to face the brothers.

Now, is this group on the same level as Crowley and his demons or even Naomi and whatever is going on with the angels? I guess that remains to be seen, but I do hope that we don't get so many "big bads" that the focus becomes spread too thin.

And if we do have more Thule members appearing in the future, I'd love to see Aaron and his Golem return as well.

Can you believe how huge the Golem was compared to Sam and Dean? Those guys normally tower over everyone, but here was one of the first times where someone was so physically imposing that the brothers looked nervous every time he stomped around.

Even Aaron was an enjoyable aspect that could have turned into someone overly whiny. Rather, he was just a guy with responsibilities trying to figure out what to do. And he was funny.

Rolling papers? Thinking the brothers are psychopaths?

There was a genuine quality to Aaron, and seeing him transition to being able to lead his Golem rather than have no idea what to do with him was good to see. It was kind of a happy ending for the episode, which was a nice change.

Even the usual one-on-one brother talk was simplified to Sam and Dean just having a drink together, on board with both being back on the job.

This was a positive turn for the brothers and the show. Whether you like the way the new Winchester mythology played out to lead them to this point, the result of the new info lair and Sam and Dean getting their job done like pros was a good transition. It seems as if everything is back on track for them to be hunting things and saving people.

Sure, Sam and Dean didn't actually get to fight Hitler in "Everybody Hates Hitler," and we really only got a small dose of the Nazi necromancer's powers, but this episode had Sam and Dean back on track, stepping into their classic roles, and doing what they do best. And there was a gigantic Golem to add to the fun.

Sean McKenna was a TV Fanatic Staff Writer. He retired in May of 2017. Follow him on Twitter.