The Blue Sea poster
Where to stream

The Blue Sea

5.520171 seasonTV SeriesDramaAction & Adventure

When a determined naval cadet crosses paths with a memory-lost special agent, she embarks on a dangerous mission to uncover his true identity and hidden past.

Where to watch

Availability shown for United Kingdom · rights vary by country

Seasons & Episodes

E1
A Chance Encounter
Oct 9, 2017
E2
Dual Face
Oct 10, 2017
E3
Heart Racing
Oct 11, 2017
E4
I'm Not...
Oct 12, 2017
E5
Finalization
Oct 13, 2017

Cast

JYJeong Ye-in
Jeong Ye-in
Jo Hae-ji
JKJo Ki-sung
Jo Ki-sung
Jung Cha-ki
KJKoo Ja-sung
Koo Ja-sung
Sung Ki-su

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The Blue Sea — streaming FAQ

Which OTT platform streams The Blue Sea?

The Blue Sea isn't on any subscription service in United Kingdom right now, but you can rent or buy it on Amazon Video. It's not on Netflix.

Is The Blue Sea on Netflix?

No, The Blue Sea is not on Netflix in United Kingdom as of October 2026. You can rent or buy it on Amazon Video.

Is The Blue Sea on Amazon Prime Video?

The Blue Sea isn't included with a Prime Video subscription in United Kingdom, but you can rent or buy it on Amazon Video.

Where can I watch The Blue Sea for free?

The Blue Sea isn't available free in United Kingdom; you can only rent or buy it on Amazon Video.

How many seasons are in The Blue Sea?

The Blue Sea has 1 season in total (5 episodes). The series concluded in 2017.

Are all episodes of The Blue Sea out yet?

Yes — all 5 episodes across 1 season of The Blue Sea are out and available to stream.

Is there a Season 2 of The Blue Sea?

No — The Blue Sea ended after 1 season, so there is no Season 2.