HBO released a new trailer for Season 2 of Game of Thrones entitled "Power and Grace" on 24 February 2012. It was initially only available via the HBO Go on demand service but is now up for everyone to see on Youtube.
I thought I'd break down the shots we see and the voiceover we hear. Spoilers for season 2 and the book it is based upon, A Clash of Kings, herein. I posted a straight forward breakdown of the trailer without the commentary about the source material on the Game of Thrones Wiki (link) so TV only viewers should think twice before reading on. That said the spoilers below do not relate to anything not seen in the trailer or give away any of the endings to character arcs in the second book. The full breakdown is after the jump.
We see Robb, Brienne and Catelyn in silhouette, with the sun behind them and a Stark banner overhead at 0:30. At 0:31 Robb strides across a battlefield as silent sisters tend to the dead behind him. We have seen this shot before in the "Shadow" tease at 0:37. I think this is likely to be the aftermath of the Battle of Oxcross because this is his first victory in A Clash of Kings. I suspect this shot matches up with the Stark riders on the battlefield at 0:14 too. At 0:32 Catelyn finishes her line to Robb "...They come at a cost." Brienne is stood behind them. At 0:34 we see Robb talking to Catelyn in a tent at night. He says "I love her."
At 0:35 a woman undoes her lover's doublet. I noticed her lighter hair which makes the next cut to 0:35 Robb kissing someone with dark hair at 0:35 seen incongruous. This sequence (excluding the battlefield shot) from 0:30 to here is new. I think the kiss is likely to be Robb and Jeyne Westerling.
Who the lighter haired woman is in the earlier shot is very hard to say without seeing anyone's face (she could still be Jeyne but there is a cut with a lighting difference there). Notably in casting announcements Jeyne (played by Oona Chaplin) is referred to only by her first name so she may not remain a Westerling in the series. Robb has no point of view chapters so Catelyn does not learn about his relationship with Jeyne until the next book (A Sword of Storms) but he reports that it began after he stormed the Crag. She nursed him after an injury and they fell into bed and then in love. Catelyn learns of his victory at the crag in A Clash of Kings chapter 56 Catelyn VII. So the beginnings of his relationship do take place in the timeline of the second book but are not revealed to the reader until the third book. I think it makes sense for the television adaptation to include their relationship now as a way to give more material to Robb when he is not with Catelyn. The show established that it was going to do this with scenes of Robb without a point of view character in the first season (e.g. discussing strategy at Moat Cailin before Catelyn's arrival) and will clearly be continuing to do so this year. I am glad we will see more of him and hope we see some of the battles that are only referenced in the books.
At 0:41 Hodor carries Bran through a wooded area as Osha trails behind them. Bran says "I heard some of the men talking about the comet." At 0:42 there is a crash zoom and pan through the treetops showing a red comet overhead. Bran continues in voiceover "They say it's an omen." Osha replies in voiceover "A Red Comet means one thing boy..." while we see a closeup of Osha kneeling beside Hodor at 0:46. I'm always unsure if it is Kristian Nairn who has a scar by his eye or if this is makeup for Hodor. He has a mark in his publicity photo on IMDB. Anyone know?
Tyrion seemingly replies in voiceover "Nothing. I know our enemies hate each other..."
At 0:52 we see Tyrion rounding a corner in darkness. At 0:53 we see Tyrion being led through a tunnel by a man with a lantern. At 0:54 there is a close-up of Tyrion in armour seated opposite Cersei in the small council chamber finishing his line "...almost as much as they hate us." This sequence from 0:49 to here is all new. I was pleased that we saw more of Tyrion and Cersei's animosity in the second book as he spends so much of the first book apart from his family - I am glad the adaptation will seemingly include some of their bickering. I can't find anything that corresponds with the dialogue here but their reunion takes place in A Clash of Kings Chapter 4 Tyrion I. I think the shot of Tyrion being led through tunnels is likely to be Varys teaching him to use secret passages to visit Shae as in A Clash of Kings chapter 16 Tyrion III.
We have seen this column marching before in the "Shadow" tease at 0:52. At 1:03 A long shot of a group of people walking single file along a mountain ridge. This sequence apart from the shot at 1:02 is new. Qhorin is a new character for season 2 and an experienced ranger who becomes a mentor to Jon. He is introduced in the books in A Clash of Kings chapter 44 Jon V. I think his warning here will prompt the Lord Commander to send out parties of Scouts into the mountains as in the book. Also new on the Nights Watch side is the dry witted Dolorous Edd - we hardly see him at all here but he is the squire to the Lord Commander and never without complaint.
At 1:16 we see Davos repositioning himself, through bars. This is new. I think this is likely to be him infiltrating Storm's End in a row boat from A Clash of Kings chapter 43 Davos II and is likely closely related to the next image. At 1:16 Melisandre gasps, apparently naked apart from her choker. This is new although there is a similar shot from a different angle in the "Shadow" tease at 0:57. I think this is Melisandre performing sorcery underneath Storm's End in A Clash of Kings chapter 43 Davos II.