Season guide
Frontline: Season 9
28 episodes
Premiered Sep 11, 1990 Updated Sep 25, 2026
Previously on Frontline
Season 9 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Frontline Season 8.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 9 Episodes
Episode Guide
🛡️ SPOILER SHIELD
Season 9 Progress Shield
Future titles & synopses blurred. Tap "Reveal" on any card to peek.
S9·E9
Core
Broken Minds
Oct 30, 1990
Three million Americans are thought to be schizophrenic. As medical science searches to find its cause, society struggles to understand a crippling disease that has shattered famil
S9·E10
Filler
Betting on the Lottery
Nov 6, 1990
Lottery fever is spreading. Twenty-nine states now raise $20 billion a year in revenues. Frontline correspondent James Reston, Jr., goes behind the scenes of state lotteries to loo