What an episode of The Flash last night!
Savitar (seemingly?) kills Iris (watch here)!
Below you can watch the extended preview for the Season 3 finale, and The CW has also released a cool new poster with the tag line "Fighting to stay a hero."
The episode is described as: "With nothing left to lose, Barry takes on Savitar in an epic conclusion to season three.”
The Flash airs Tuesdays at 8pm ET on The CW starring Grant Gustin.