Quick answer: The 2026 Treasure Island adaptation is scheduled to premiere first in the United States on MGM+ on Sunday, October 11, and one day later in the United Kingdom and Ireland on Paramount+ on Monday, October 12. The series is a joint Paramount+ and MGM+ original, but the services have announced different regional launch dates. Neither platform has publicly explained a specific business reason for the one-day gap in the official information reviewed for this article.
Treasure Island release dates by region
| Market | Streaming service | Premiere date | Episode rollout |
|---|---|---|---|
| United States | MGM+ | Sunday, October 11, 2026 | Weekly episodes; finale scheduled for November 15 |
| United Kingdom and Ireland | Paramount+ | Monday, October 12, 2026 | Weekly episodes; finale scheduled for November 16 |
The dates are confirmed by the platforms’ published series information and launch coverage. The one-day difference is a regional release schedule, not evidence that the two services are showing different versions of the story. The announced series is a six-part reimagining of Robert Louis Stevenson’s 1883 novel.
Why are MGM+ and Paramount+ showing the same series?
Treasure Island is presented as a Paramount+ and MGM+ original, produced by Playground in association with MGM+ and Fifth Season. The companies have divided the initial streaming launch by territory: MGM+ is the U.S. home, while Paramount+ serves the UK and Ireland. That arrangement explains why viewers should check the service available in their own market rather than assume one global streaming home.
It is tempting to attribute the staggered dates to marketing, local viewing habits, or a strategy to avoid competing premieres. Those explanations may sound plausible, but they should not be presented as fact without a statement from the distributors. The verifiable point is narrower: the two services announced different dates for their respective territories, one calendar day apart.
What viewers in the United States should know
U.S. viewers should look for Treasure Island on MGM+ beginning October 11, 2026. The first episode introduces Jim Hawkins, his mother Bess, the treasure map connected to Captain Flint, and Long John Silver’s pursuit of the same fortune. The series turns the familiar adventure into a six-episode drama about loyalty, ambition, and the risks of trusting the wrong person.
The U.S. finale is listed for November 15. Because episode schedules can change, viewers should check the MGM+ app or official schedule for the latest local listing before planning a watch party.
What viewers in the UK and Ireland should know
In the UK and Ireland, the announced premiere date is October 12, exclusively on Paramount+. New episodes are scheduled weekly, with the six-part run due to conclude on November 16. The UK launch follows the U.S. launch by one day, so spoiler-sensitive viewers in Britain and Ireland may want to mute keywords or avoid episode discussions as soon as the American premiere becomes available.
That short gap can matter for online fandom. A finale twist, character reveal, or memorable scene may circulate on social media before the next territory’s episode is available. It is not a different premiere season; it is a one-day difference in the scheduled regional start.
Does the date difference mean the episodes are different?
No public announcement reviewed for this article indicates that the U.S. and UK/Ireland versions contain different cuts or episode orders. The services have described the same six-part adaptation, with weekly releases in each market. Unless a distributor announces otherwise, the sensible reading is that the same series is launching on separate regional schedules.
Watch the official trailer
Here is the trailer published for the new adaptation. Availability and release dates may vary by territory; check the relevant streaming service for the listing in your region.
Frequently asked questions
When does Treasure Island premiere in the United States?
The 2026 series is scheduled to premiere on MGM+ in the United States on Sunday, October 11, 2026.
When does Treasure Island premiere in the UK?
The series is scheduled to premiere on Paramount+ in the United Kingdom and Ireland on Monday, October 12, 2026.
Why are the U.S. and UK premiere dates different?
The platforms have announced separate regional launch dates one day apart. The official information reviewed does not state a specific reason for choosing the different dates, so claims about marketing strategy or audience behavior would be speculation.
Is Treasure Island exclusive to one streaming service worldwide?
No. The announced launch is split by region: MGM+ in the United States and Paramount+ in the United Kingdom and Ireland.
How many episodes are in Treasure Island (2026)?
The adaptation has six episodes, scheduled for weekly release in both markets.
Sources and further reading
- Paramount+ UK & Ireland — official series guide, cast, trailer and premiere date
- Time Out — Treasure Island filming locations and regional premiere dates
- C21Media — Paramount+ UK and MGM+ US partnership announcement
- Rotten Tomatoes — Treasure Island (2026) series listing
By Shivam Das