"Mistresses" Season 4 episode 6 debuts July 11 on ABC. The upcoming segment is titled "What Happens in Vegas" and it will see some intriguing twist in Karen's life, drama between Lucy, April and Marc while Joss and Harry take a trip to Las Vegas. Here are the detailed spoilers for the next chapter of ABC's fan-favourite television drama. Read on to find out what happens next.

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[Spoiler alert! This article contains spoilers for "Mistresses" Season 4 episode 6 "What Happens in Las Vegas." Do not read further if you don't wish to know more about it.]

Fans must brace themselves for a high-on-drama segment airing next week. The network has released a synopsis for "Mistresses" Season 4 episode 6 on its official website. According to the press release, Karen's life takes an unexpected turn when someone from her past makes a surprise visit. April and Marc's relationship hit a snag. And Joss and Harry receive an invite to Las Vegas.

In "What Happens in Vegas," Karen's ex Alec appears with an unexpected news. He drops a bombshell on Karen that will turn her life upside down. While the details about the news remain unknown, it is said to be something related to new in Alec's life.

Meanwhile, Lucy becomes the cause of tension between April and Marc. The couple struggles with issues related to Lucy's parenting and clashes. As a result, their bond gets affected.

Elsewhere, Kate finds out that her new love interest might be associated to Joss and Harry. As for Joss and Harry, they receive an invitation to Las Vegas by Harry's new business partner Jonathan. Not much is revealed about their trip to Las Vegas, but the report states that "Joss snaps unexpectedly just before they are to be married." To find out what actually happens, fans will have to wait for another week.

Note: Promo video for "Mistresses" Season 4 episode 6 is yet to be released. It is expected to be out after the television broadcast of episode 5 "Lean In." Stay tuned, it will be made available for fans.

"Mistresses" Season 4 episode 6 "What Happens in Las Vegas" airs July 11 at 10:00 pm on ABC. More spoilers and updates are expected soon. 

UPDATE

A promo video for "Mistresses" Season 4 episode 6 is released. Scroll down to take a glimpse of "What happens in Vegas."