Castle season 6, episode 19, titled “The Greater Good,” will be airing tonight on ABC, and the show takes a spin off the themes of The Wolf of Wall Street.

In the 19th episode of the sixth season, Castle and Beckett start investigating a murder that involves Wall Street, tons of cash, and the Captain’s sister. The synopsis reads:

Castle and Beckett investigate the murder of a Wall Street trader, but the case takes a shocking turn when the they discover the victim was an undercover informant for the U.S. Attorney’s office. To complicate matters further, the U.S. attorney involved is Elizabeth Weston, Captain Gates’ estranged sister.

Check out last week’s preview of the episode:

ABC also released two clips from the episode.

The first clip begins with Castle and Beckett visiting Lanie after she called them down to look at their victim. Turns out that the victim was wearing a wire, and Castle and Beckett go to inform their Captain. While informing her, they say that they’re having trouble finding one of their suspects when said suspect actually walks in alongside Captain Gates’ sister.

In the second clip, Castle and Beckett start talking about the invite list to their wedding, when Beckett says she has over a hundred, and Castle admits he has over four hundred. They start discussing who to cut off the list when Martha walks in and they ask if she can offer a third point of view to help them with the brutal cutting of the list. She agrees, of course, and then mentions they can help her with her list because she made one too. Oh no!

Watch ‘Castle’ season 6, episode 19 online!

Can’t watch the show live? No problem! You can catch brand new episodes of Castle the day after they air through services like Hulu, or directly on ABC’s website.