From the monster-of-the-week hours to the larger mythology stories, this season is firing on all cylinders.
To call Dean Winchester.
Bart tells them that after Crowley (R.I.P.)

Credit: Jack Rowand/The CW
To incentivize them, he hands over half of the spell from the museum.
According to him, the spell once they have both halves will help them track down Jack.
After all, Sams the smart one.
At the bunker, he tells Dean that the spell seems to check out.
But now they need the other half.
And that means they need to talk to Bart.
At their second meeting, Bart introduces them to his two associates: Smash and Grab.
(Get it?)
Smash is his safe expert, and Grab is a demon whos super good at bypassing supernatural security.
With that, Dean gets a little too excited that this could be a heist.
(Spoiler: It is.)
It seems a hoarder named Luther Shrike connects supernatural objects and has something that belongs to Bart.
(Say that three times fast.)
As for this Luther guy, it seems hes been to Hell himself.
So what exactly does he have that belongs to Bart?
But either Sam and Dean help him recover it, or he hands over the Nephilim-finding spell to Asmodeus.
That gives Sam an idea: They help this guy get his trunk, and then they kill him.
Well, that was easy.
And hes more than prepared when Sam pulls up in his driveway to offer him a rare item.
(Dean and Smash are stashed in the back.)
Once Sam gets through the gate, Dean and Smash jump out.
(Next: Can Sam and Dean finish the job?)
Just like that, Dean unwillingly leads them to the vault room.
No big deal, right?
Well, unless youre Dean and youre scared of spiders, snakes, or spiders.
And once the door opens, they discover that the floor is essentially one big, deadly maze.
Meanwhile, inside, Sam is risking his life by trying some of Luthers homemade gin.
(The guy really never leaves his house.
Do they even have grocery delivery services where he is?!)
He then proceeds outside and kills poor Grab.
Smash manages to run away, leaving Dean to shoot Luther a lot before realizing its not working.
Sam wakes up and arrives just in time to tell Dean that the guys immortal.
According to Luther, so long as hes on his property, he cant die.
So, instead of killing him, Dean knocks him out and ties him up.
Sam gets an idea.
And by the time they do, Smash is back.
Alice quickly cracks the safe, and the guys grab the trunk and hit the road.
But Luther isnt giving up so easily.
But when his son died in an drowning accident, Bart claimed he wasnt responsible for accidents.
So when the Hellhounds came and dragged Luther to Hell, he bartered a new deal using his leverage.
Barts bones, which are in the trunk.
(This strategy sound familiar?
Remember that time the boys stole Crowleys bones?)
So, Bart decides to threaten Alices life if they dont hand over the bones.
Sadly, Barts burning body takes the other half of the spell with him when he goes.
(Although, didnt he mention something about copies earlier?)
And Sam, for one, is glad to hear Dean talk like that again.