Actor Iain Glen as Jorah in HBO TV series "Game of Thrones." Facebook/ Game of Thrones

A leaked picture from the production set of “Game of Thrones” season 7, and the spotting of Iain Glen appears to confirm a previous spoiler about the plot of the show. The TV series is currently filming in Iceland, where many of the cast members have been spotted in the past few weeks.

[Spoiler alert]

One of the behind-the-scenes pictures posted on Watchers on the Wall shows Kit Harington (Jon Snow). The other confirmed actors for this shoot are Joe Dempsie (Gendry), Thoros of Myr (Paul Kaye) and Glen (Jorah).

While Harington, Dempsie and Kaye were previously spotted in Iceland, Glen has now joined them. The report notes that this confirms a previous leak about the plot that suggests these characters will be travelling beyond the Wall to capture a Wight, in order to prove to the lords of Westeros that the White Walker threat is real.

A part of this scene for “Game of Thrones” season 7 was reportedly filmed in Ireland. At that time, the above mentioned cast members were joined by Kristofer Hivju (Tormund) and Rory McCann (Hound). So, these two cast members may also be arriving in Iceland soon to finish the scene.

This scene is expected to be featured in episode 6, as Director Alan Taylor is said to be involved in the filming. The report notes that since this is the episode just before the finale, in which traditionally the major action sequence of the show is featured, something big can be expected beyond the Wall.

A previous leak about episode 6 revealed that Viserion dies in this episode, and will be resurrected by the Night’s King to serve as his mount. The Wall was revealed to fall in the finale episode.

While “Game of Thrones” season 7 has been confirmed to have seven episodes, there is still no clarity about season 8. In an interview with TVLine, President of Programming at HBO Casey Bloys revealed that they are still working with David Benioff and D.B. Weiss on the number of episodes. The producers want to finish the series with six episodes, but Bloys hopes that this number will be increased.