Set shortly after the events of Terminator 2: Judgment Day, Terminator: The Sarah Connor Chronicles was canceled after just two seasons, leaving the series unfinished and with a cliffhanger ending. While it's not entirely clear what was going to happen next in Terminator: TSCC, the science-fiction drama show teased a few possibilities in what became its series finale. Penned by Josh Friedman, who'd go on to co-write 2019's Terminator: Dark Fate, the 31-episode spinoff show aired from 2008 to 2009, and starred Game of Thrones' Lena Headey as Sarah Connor — the Terminator protagonist first portrayed by Linda Hamilton in 1984.
https://screenrant.com/terminator-sarah-connor-chronicles-ending-cliffhanger/