Season
Where to Watch Frontline Season 21 in the US
Frontline is available with a subscription, free, or to buy in the United States.
Subscription
Watch similar TV shows on Amazon Prime Video for free30 Days FreeThen $8.99 / monthStream FreePromotedOpens in a new tab.Some links are affiliate links; we may earn a commission. Prices may change. Check the provider for current pricing. Details.
Series availability last checked Oct 8, 2026.
Frontline viewing options
- Watch the series with a subscription on PBS Documentaries (HD).
- Watch the series free on PBS (HD).
- Buy available seasons on Prime Video.
Available seasons and episodes vary by service.
Episodes
- S21E03 — Failure to Protect: The Taking of Logan Marr9.4 IMDb
- S21E05 — China in the Red2003-02-13
- S21E06 — The War Behind Closed Doors2003-02-20
- S21E09 — Kim's Nuclear Gamble2003-04-10
- S21E10 — Cyber War2003-04-24
- S21E11 — Burden of Innocence2003-05-01
- S21E14 — Public Schools, Inc.2003-07-03
- S21E15 — Truth, War & Consequences2003-10-09
- S21E16 — Chasing the Sleeper Cell8.3 IMDb
- S21E18 — Dangerous Prescription2003-11-13
Seasons and episodes
Watch links for each season and episode are the same services that carry Frontline.
- Season 14 episodes
- Season 26 episodes
- Season 37 episodes
- Season 42 episodes
- Season 53 episodes
- Season 68 episodes
- Season 711 episodes
- Season 89 episodes
- Season 98 episodes
- Season 107 episodes
- Season 118 episodes
- Season 129 episodes
- Season 1313 episodes
- Season 149 episodes
- Season 1513 episodes
- Season 1611 episodes
- Season 177 episodes
- Season 1813 episodes
- Season 1911 episodes
- Season 205 episodes
- Season 2110 episodes
- Season 2211 episodes
- Season 2310 episodes
- Season 2410 episodes
- Season 258 episodes
- Season 2610 episodes
- Season 279 episodes
- Season 2814 episodes
- Season 2916 episodes
- Season 3025 episodes
- Season 3117 episodes
- Season 3218 episodes
- Season 3320 episodes
- Season 3413 episodes
- Season 3517 episodes
- Season 3613 episodes
- Season 3714 episodes
- Season 3817 episodes
- Season 3923 episodes
- Season 4012 episodes
- Season 4118 episodes
- Season 4217 episodes
- Season 439 episodes
- Season 444 episodes
Where to Watch Frontline Season 21 in the US — common questions
- Where to watch Frontline Season 21 in the United States?
- Frontline is available with a subscription, free, or to buy in the United States. Frontline viewing options Watch the series with a subscription on PBS Documentaries (HD). Watch the series free on PBS (HD). Buy available seasons on Prime Video. Available seasons and episodes vary by service.
- Where can I watch Frontline Season 21 in the United States?
- Frontline is available with a subscription, free, or to buy in the United States. Frontline viewing options Watch the series with a subscription on PBS Documentaries (HD). Watch the series free on PBS (HD). Buy available seasons on Prime Video. Available seasons and episodes vary by service.