Where to watch The 100 Season 1 in Australia
The 100 season 1 is streaming in Australia on Prime Video (subscription) and HBO Max (subscription), and free on 9Now. You can also buy it on Apple TV from $29.99, Fetch TV from $19.99 and Prime Video Store from $26.99.
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Stream (subscription)
Watch now on Prime VideoPrime Video
Subscription
$12.99/mth (Amazon Prime Monthly plan) · Added 9 October 2026
Stream now on HBO MaxHBO Max
Subscription
From $11.99/mth
Free
Watch 9Now on 9Now9Now
Free with ads
Buy or rent
Stream now on Apple TVApple TV
Buy
Buy from $29.99 a season
Get Fetch on Fetch TVFetch TV
Buy
Buy from $19.99 a season
Rent or buy on Prime Video StorePrime Video Store
Buy
Buy from $26.99 a season
Availability checked 16 November 2026.
What happens in “His Sister's Keeper”
Bellamy, Finn and Jasper head into Grounder territory to search for Octavia, as flashbacks show the siblings' difficult childhood on the Ark. Meanwhile, Raven finds out about Clarke and Finn.
Episode summary: TMDB.
Before you watch
- It is episode 6 of 13 of season 1, so watch episodes 1 to 5 first.
- It runs about 42 minutes.
- Directed by Wayne Rose, written by Tracy Bellomo and Dorothy Fortenberry.
- TMDB users rate it 7.5 out of 10 (62 votes).
The 100 trailer
The official trailer for the series (no preview of this episode has been published).
Play video: The 100 trailer
Cast and crew of this episode
- Director
- Wayne Rose
- Writers
- Tracy BellomoDorothy Fortenberry
- Guest stars
- Lindsey Morgan as Raven ReyesRicky Whittle as LincolnTerry Chen as Commander ShumwayAaron Miko as John MbegeCelia Reid as RomaMonique Ganderton as Aurora BlakeGiacomo Baessato as DiggsVíctor Ayala as Horace
Credits: TMDB.
More from The 100 Season 1
Previous · S01E05Twilight's Last Gleaming16 April 2014
Next · S01E07Contents Under Pressure30 April 2014Every episode of Season 1The 100 episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.