WARNING: THIS ARTICLE CONTAINS SPOILERS FOR 'X-MEN: DARK PHOENIX'
"Why did you make me do that? She was my friend," a scared Jean Grey (Sophie Turner) says in the new trailer for "X-Men: Dark Phoenix," just before the clip cuts to show a major death.
It was revealed in the beginning when Mystique, the shape-shifting mutant played by Jennifer Lawrence, approaches Jean Grey, who is struggling to keep her newfound power in check.
She loses control of it at that particular moment and it appears that she kills Mystique while the rest of the X-Men, including Xavier (James McAvoy) and Cyclops (Ty Sheridan), watch.
The death was confirmed by the movie's director, Simon Kinberg, to EW, where he explained that they wanted "to show that this is a movie that is unlike other X-Men movies."
"It's a movie where shocking things happen... People don’t just fall off buildings and dust themselves off and walk away. There’s a reality to this movie and a consequence to this movie."
"X-Men: Dark Phoenix" centers around this struggle of Jean's.
After she survives getting hit by a mysterious cosmic force during a rescue mission in space, she finds that this same forces has now made infinitely more powerful, but far more unstable.
The X-Men must now find a way to unite -- not only to save Jean's soul, but to protect the planet from aliens who wish to weaponize this force and rule the galaxy.
It is an adaptation of the the iconic "Dark Phoenix Saga" comic book story, written by Chris Claremont, Dave Cockrum and John Byrne, which also inspired 2006's "X-Men: The Last Stand."
It will open in theaters this June.