How to watch The Castaways: stream the holiday TV show online

The Castaways is a holiday thriller on Paramount Plus starring Sheridan Smith.
(Image credit: Paramount Plus)

Your new Boxing Day binge show is here, in the form of The Castaways a new tropical mystery show that debuted on Tuesday, December 26. It's not exactly Christmassy, but it's still about family togetherness.

Quick links

UK: Paramount Plus
US
: Not streaming yet
VPN: ExpressVPN

Based on a book by Lucy Clarke, The Castaways is about a tropical holiday gone wrong.

When two sisters traveling around Fiji have an argument, they split up. Erin decides to stay where she is on their island-hopping trip, while Lori gets on a plane to travel elsewhere. When the plane disappears, Erin thinks she's lost her sister... until her credit card is used in a remote village in Fiji.

In this tense mystery-thriller, we see Lori as she has to survive in the wild, while Erin tries to figure out what happened to her sister. It's like Lost meets Yellowjackets, except you won't have to wait for each episode to come out.

So here's how to watch The Castaways from wherever you are... if it's streaming for you.

How to watch The Castaways in the UK

In the UK, you can use Paramount Plus in order to watch The Castaways, with the show landing on the streaming service on Tuesday, December 26 (that's Boxing Day).

Paramount Plus costs £6.99 per month or £69.90 per year, after a seven-day free trial. You can also sign up via a Prime Video channel if you're an Amazon Prime subscriber.

Until the second day of 2024, you can sign up for an annual subscription to Paramount Plus for half price, so if you're keen to see The Castaways you should act quick.

How to watch The Castaways in the US

At the time of writing, there's no word on when The Castaways will release in the US — it's only confirmed for a UK and Ireland release so far.

Some rumors suggest that The Castaways will land on Paramount Plus around the world from early 2024, but the company itself hasn't confirmed it just yet. So if you're desperate to see the show, you might need to find another way to watch it...

How to watch The Castaways everywhere else

If you're going to be away from your normal TV setup but still want to watch The Castaways, you might run into some problems. Thankfully, you can solve this exact issue with a Virtual Private Network (VPN). 

A VPN lets you change your IP address to that of the area of what you want to watch, meaning you can tune in to your favorite shows like The Castaways or other content even if you're not there. Our favorite is ExpressVPN, which is the No. 1-rated VPN in the world right now according to our sister site, TechRadar.

ExpressVPN
$12.95 at ExpressVPN

ExpressVPN is one of the simplest and most affordable ways to watch what you want from anywhere you want to watch it. 

It's straightforward and easy to use, has great security, is available on loads of streaming devices and, best of all, it comes with a 30-day money-back guarantee, so you can try it out 100% risk-free.

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Tom Bedford
Streaming and Ecommerce Writer

Tom is the streaming and ecommerce writer at What to Watch, covering streaming services in the US and UK. His goal is to help you navigate the busy and confusing online video market, to help you find the TV, movies and sports that you're looking for without having to spend too much money.