Where to watch The Flash Season 4 in Australia
The Flash season 4 is streaming in Australia on Prime Video (subscription), HBO Max (subscription) and Stan (subscription), and free on 9Now. You can also buy it on Apple TV from $29.99, Fetch TV from $29.99 and Prime Video Store from $24.99.
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Stream (subscription)
Watch now on Prime VideoPrime Video
Subscription
$12.99/mth (Amazon Prime Monthly plan)
Stream now on HBO MaxHBO Max
Subscription
From $11.99/mth
Watch now on StanStan
Subscription
From $9.99/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 $29.99 a season
Rent or buy on Prime Video StorePrime Video Store
Buy
Buy from $24.99 a season
Availability checked 16 November 2026.
What happens in “Run, Iris, Run”
Team Flash confront a new bus meta, Matthew aka Melting Pot. He has the ability to swap people’s DNA, so during a battle with Team Flash, he transfers Barry’s super speed to Iris. Now, with a new threat unleashed on Central City, Barry must act as the team leader while Iris takes on the mantle of superhero speedster in order to defeat their new foe.
Episode summary: TMDB.
Before you watch
- It is episode 16 of 23 of season 4, so watch episodes 1 to 15 first.
- It runs about 41 minutes.
- Directed by Harry Jierjian, written by Eric Wallace.
- TMDB users rate it 5.7 out of 10 (33 votes).
The Flash trailer
The official trailer for the series (no preview of this episode has been published).
Play video: The Flash trailer
Cast and crew of this episode
- Director
- Harry Jierjian
- Writer
- Eric Wallace
- Guest stars
- Hartley Sawyer as Ralph Dibny / Elongated ManOliver Rice as Erik FryeMax Adler as Jaco BirchKoshiki Tanaka as NurseTommy Europe as Security GuardLeonardo Nam as Matthew Kim / Melting Point
Credits: TMDB.
More from The Flash Season 4
Every episode of Season 4The Flash 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.