The Flash Finale Sneak Peek: Thawne Taunts Barry About Iris' Death — Who Might Be the Team's Next Sacrifice?

Reverse-Flash is alive and kicking… and gloating, frankly, about his and the Negative Forces’ role in Iris West-Allen’s tragic death, in this exclusive sneak peek from The Flash‘s Season 8 finale (airing tonight on The CW).

When last we tuned in, The Flash (played by Grant Gustin) had done a major lap around town before hurling a massive bolt of lightning toward the Negative Forces (played by Christian Magby, Ennis Esmer and Sara Garcia) who had been playing havoc with his life and one true love. But just before the bolt hit, Iris (Candice Patton) was transported from 2049 to the present, landing squarely in its path.

More from TVLine

• Kung Fu Season 3: Yvonne Chapman Returning as Zhilan, JB Tadena Upped to Series Regular

• The CW Sets Fall Premiere Dates, Plus a Late-Summer Return for Stargirl

• How Exactly The Flash's Series Finale Was Changed to Be a Season Finale

After she slumped to the ground, lifeless and caught by a bereft Barry, Iris disappeared, leaving behind a cloud of negative tachyons that drifted over toward speedster Meena’s beau, Eobard Thawne, and horrifically transformed the Matt Letscher’s “OG” incarnation of the character into Tom Cavanagh’s sinister speedster.

In the sneak peek above, Barry lashes out at the reconstituted and recharged Reverse-Flash, who all too happily taunts his arch enemy about those he has lost to Thawne’s lifelong campaign of treachery. Plus, what sacrifice might Team Flash make next? Press play above to find out!

As Flash showrunner Eric Wallace told TVLine about the finale, “There’s a little bit at the top” in which Cavanagh’s Thawne sheds light on how Iris’ death breathed new life and speed into the recently departed sinister speedster. “And then you’ll hear it in the words of the people who are putting this all together, the masterminds behind everything that’s been happening in Season 8,” Wallace previewed. “You will get an explanation from our ‘Big Bads,’ the Negative Forces themselves, about why they’re doing what they’re doing, and why they did it now, which is pretty awesome.”

Want scoop on The Flash, or for any other show? Email InsideLine@tvline.com and your question may be answered via Matt’s Inside Line.

Best of TVLine

• Super Women: Empowering Words From Scandal, Handmaid's Tale, Game of Thrones, Veronica Mars and More

• The Emmys' Most Memorable Moments: Laughter, Tears, Historical Wins, 'The Big One' and More

• Young Sheldon: Every Big Bang Theory Cameo, Easter Egg and Future Reveal

Get more from TVLine.com: Follow us on Twitter, Facebook, Newsletter

Click here to read the full article.