Lord Asriel, strides resolutely through an excavated rock tunnel.

You must have been confused by how the second season ended, if you haven't read Philip Pullman's trilogy yet. Mrs. Coulter kidnapped her daughter, who might be a second Eve, and Asriel was planning to stage a coup against the authority. The first trailer shows that things are going to get crazy.

There is a lot happening here. The Magisterium is on the move, Iorek Byrnison is back, and Asriel has assembled an army of witches and angels.

The finale of Pullman's trilogy, The Amber Spyglass, His Dark Materials, will premiere on December 5.

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