The entire seventh season of Game of Thrones has leaked online

Emilia Clarke as Daenerys Targaryen in Game of Thrones.

Game of Thrones fans eagerly awaiting the next season watch out, because you could have the whole thing ruined for you.

The entire plot for season seven - which isn't due to begin airing until the middle of next year - has leaked.

One reddit user dumped what many believe to be the full breakdown of each and every episode for the upcoming season online.

The information was posted to the Freefolk subreddit, which is known for being the place for reliable spoilers.

Some of the spoilers have since been deleted, but many remain on the Heat Street website.

Kit Harington stars as Jon Snow in a scene from Game of Thrones.

Actress Nathalie Emmanuel, who plays Missandei on the show, slammed those responsible for the leak.

"It's really disappointing there are people who are determined to ruin Season 7 for everyone ..." Emmanuel wrote on Twitter.

It's really disappointing there are people who are determined to ruin Season 7 for everyone... 😒 #spoilsports

— Nathalie Emmanuel (@missnemmanuel) October 22, 2016

Other spoilers have been appearing online in recent months, including photos from fans who manage to snap pictures of the stars on set or tip-offs about actors joining the Thrones cast.

Game of Thrones isn't set to return until mid-2017 but for those who can't wait to find out what happens, you can read the spoilers here.