Castle season 7, episode 6 airs tonight. Check out the promo images, watch a couple of clips from last week’s episode, and read the synopsis ahead of the episode here!

Need a reminder of what happened on Castle last week? Check out our Castle season 7, episode 5 recap here.

The moment every Caskett fan has been waiting for is finally here! Hopefully it will live up to expectations.

The official synopsis for Castle season 7, episode 6: “A murder investigation launches Castle into what seems to be an alternate universe where he’s never met Kate Beckett. Castle has to convince Beckett, Esposito and Ryan — now complete strangers — to let him participate in their investigation so he can find his way back to his own world. This inspires Castle and Beckett to finally take a trip to the altar.”

By now we all now they actually get married by episode’s end but the road there will not be easy. It never is, is it? Watch the official trailer below:

Castle somehow ends up in an alternate reality where he never worked with Beckett and they never fell in love. Watch the clip below:

But all ends well and everyone is smiling in the clip below:

Here’s hoping there are plenty of clues for diehard Caskett fans that will hark back to early episodes. Check out the episode stills for one last look before tonight!

Watch ‘Castle’ online

If you’re unable to watch the episode live, ABC offers full episodes of Castle on its official website. However, they typically aren’t up for several days.

Check back later tonight for the full recap of tonight’s episode of Castle!