There are just three more episodes left in Season 6 of HBO's beloved fantasy series Game of Thrones, which continues Sunday, June 12 at 9 PM ET with No One. On Sunday night, we showed you a preview for this upcoming episode, which teased several new developments, and today we have the official, yet brief, plot synopsis for this upcoming episode. Be warned, if you aren't caught up with Season 6 quite yet, there will be plenty of spoilers below, so read on at your own risk.

The plot rundown, courtesy of HBO reveals that Jaime Lannister (Nikolaj Coster-Waldau) "weighs his options," while Cersei (Lena Headey) answers a request. In last week's episode, Jaime was tasked with confronting Blackfish (Clive Russell), who had taken over the castle at Riverrun. We saw Jaime meet face-to-face with Blackfish, who made it clear that he would never abandon this castle, teasing a full-scale battle that will come. We also saw in the teaser for No One that Sansa Stark (Sophie Turner) had Brienne (Gwendoline Christie) deliver a letter to Blackfish, asking him to surrender, but we'll have to see how that ploy pans out.

It's also worth noting that Brienne told Jaime in the trailer that, if this letter can't get Blackfish to give up the castle, she'd be forced to fight Jaime, since she is now sworn to protect Sansa Stark. This could be quite intriguing for fans, since they both grew to respect one another after Brienne was tasked by the late Catelyn Stark (Michelle Fairley) to bring Jaime back to King's Landing. We'll have to wait and see if the Kingslayer will end up coming to blows with Brienne, or if one of these characters will be killed off.

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The synopsis also teases that Tyrion's (Peter Dinklage) plan "bears fruit" while Arya (Maisie Williams) faces a new test. We learned earlier this season that Tyrion negotiated with the slavers of Meereen to end slavery, giving them seven years to abolish the practice once and for all. We last saw Tyrion speaking with Kinvara (Ania Bukstein), the High Priestess of Volantis, asking her to spread word of his negotiations with the slavers. Perhaps this cryptic synopsis means that the people of Meereen will accept Tyrion's plan, but we'll have to wait and see.

As for Arya, she was last seen getting stabbed by The Waif (Faye Marsay), after booking passage back to Westeros to escape from the House of Black and White. She was given a second chance with her mentor Jaquen H'gar (Tom Wlaschiha), to take the life of an actress, but she couldn't do it, and was then forced to go on the run. We'll have to wait and see if she will eventually make it back to Westeros, and possibly reunite with the rest of the Stark family. Stay tuned for more on Game of Thrones as we get closer to this new episode airing on Sunday night.