Connie Britton's Abby Is [SPOILER] in Preview for '9-1-1' Season 3 Finale!

Connie Britton returned to 9-1-1 in tonight’s penultimate episode of season three and the preview for next week’s finale revealed a big detail about what Abby has been up to.

The last time we saw Abby was the end of season one, when she left her then-boyfriend Buck (Oliver Stark) and went to live in Ireland on her own.

Now, Abby is back and she just called 9-1-1 after being involved in a “mass casualty” train accident.

In the preview for next week’s episode, Abby is seen reuniting with Buck and she tells him that her fiance is on the train. She’s engaged!

The season three finale airs on Monday, May 11 at 8/7c on Fox.

In other Connie news, she recently shared some rare photos of her son!