"FBI" fans went into the Season 8 premiere expecting a character would die — but probably not guessing the person who did.

At the end of Season 7, Special Agent Isobel Castille's (Alana de la Garza) fate was left up in the air after she began stumbling over her words then fainted. When her colleague Jubal (Jeremy Sisto) checked on her, he discovered that she didn’t have a pulse, according to Entertainment Weekly .

Viewers had to wait until the end of the Season 8 premiere to learn what happened to Isobel. Per TV Insider , Jubal contacted Isobel’s husband Philip (Tom Cavanagh) to tell him that she had to undergo an emergency craniotomy due to a brain bleed. Luckily, Isobel made it through.

Alana De La Garza as Isobel on "FBI." Bennett Raglin / CBS

The episode also put two other ch

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