WATCH: His Dark Materials season 2 official trailer

His Dark Materials the Subtle KnifeHBO has unveiled the full trailer for His Dark Materials season 2 and it warns that “the greatest war there ever was is coming.”

“The world’s changing, we’ve all sensed it, the prophecy is clear: our duty is to protect the girl and the boy wherever they are,” the trailer begins, foretelling the important destinies of the two young heroes, Lyra Belacqua (Dafne Keen) and Will Parry (Amir Wilson), as they move between different worlds, fleeing those who would do them harm.

The rest of the clip shows the growing conflict between the Magisterium and the Witches while Lee Scoresby (Lin-Manuel Miranda) joins forces with a mysterious character named John Parry (new cast member Andrew Scott) in his search for Lyra. Parry also mentions a powerful and important item, a knife that can slice through worlds, and Will is shown wielding this weapon, a clue to his own role in the grander scheme of things.

Other new cast members joining the show this season are Jade Anouka, Simone Kirby, and Phoebe Waller-Bridge as the voice of Scott’s daemon while returning cast members include Ruth Wilson as Mrs. Coulter, Ruta Gedmintas as Serafina Pekkala, and many others.

Here is the official synopsis:

“Season two of His Dark Materials begins after Lord Asriel has opened a bridge to a new world, and, distraught over the death of her best friend, Lyra follows Asriel into the unknown. In a strange and mysterious abandoned city, she meets Will, a boy from our world who is also running from a troubled past. Lyra and Will learn their destinies are tied to reuniting Will with his father but find their path is constantly thwarted as a war begins to brew around them. Meanwhile, Mrs. Coulter searches for Lyra, determined to bring her home by any means necessary.”

His Dark Materials season two will premiere on November 16 on HBO.

Check out the full trailer below: