Created by Snowpiercer developer Josh Friedman, the Fox series picked up where Terminator 2: Judgment Day left off—as, once upon a time, the third Terminator film did, though we were asked to forget all ensuing action when 2019's Terminator: Dark Fate (also written by Friedman) came out.
Anyway, starring Lena Headey as the waitress turned warrior and mother of resistance leader John Connor, supposedly 15 and played pretty convincingly by 20-year-old Thomas Dekker, and Summer Glau as the Terminator who protected John in the future (none of it ever makes any sense unless you're watching it), the sci-fi drama was Fox's highest-rated new scripted series in 2007-08 and fans were all in, but it didn't get renewed for a third season.
All the people who didn't go see Dark Fate would have probably preferred another three or four years of The Sarah Connor Chronicles instead.