The Flash Season 6 finale just aired on CW and it was amazing with full of action and the usual cliffhanger in the end. Due to production shutting down abruptly over the COVID-19 pandemic “The Flash” Season 6, Episode 19, titled “Success is Assured” was made the season finale.
— The Flash (@CW_TheFlash) May 13, 2020
The ending solely focused on Eva McCulloch (Efrat Dor) turned out to be the big bad of this season and the ending scenes confused a lot of people. The Flash Season 6 ending has been explained in the article and there are spoilers ahead for what happened to Eva and hence read it after you have watched Episode 19.
The Flash Season 6 Ending Explained
The Flash Season 6 Episode 19 shows Eva kidnapping Ultraviolet, Dr. Light and Sunshine. The Team Flash tries to find the black hole but Mirror Singh burns the map before they are able to locate it. It is when Mirror Singh makes a trade with Barry and offers to free Iris from the mirrorverse in exchange for Carver. But even before Barry agrees to accept the offer, he is teleported back to the Star Labs by Nash Wells.
Eva is somehow able to find Carver’s location and kills her husband to gain control of McCulloch Technologies. It is revealed in The Flash Season 6 finale that Eva turns her arms into a canon and kills her husband Carver. The Flash Season 6 Episode 19 ends with Eva talking to CCPD and framing Sue for her husband’s death.
Will Eva come back in The Flash Season 7 as Mirror Master?
The Flash Season 6 ending confirms that Eva has become the new Mirror Master and taken over the control of McCulloch Technologies. Eva is now a serious threat to the Team Flash and she holds control over Barry as Iris is her hostage.
It is shown that Iris is able to find Singh in the Mirrorverse, but she disappears soon, hinted to be taken over by Eva. The Flash Season 7 will show that Eva as Mirror Master will be the main villain or at least the big bad for the first few episodes. The Flash Season 6 Episode 19 can be streamed on CW apps and websites.