Sentai Filmworks announced plans to follow up its release of the first season of Knights of Sidonia with the second, Knights of Sidonia: Battle for Planet Nine. Season two will be available soon on both DVD and Blu-ray.

The second season of Knights of Sidonia has first season co-director Hiroyuki Seshita taking over as director, with Sadayuki Murai (Kino's Journey) back on series composition for the Polygon Pictures production.

Sentai's synopsis:

The story continues to follow ace pilot, Nagate Tanikaze, as he spearheads the defense of Sidonia against a terrifying alien threat alongside an unlikely ally, a human-alien hybrid whose voice is strikingly similar to someone he loved and lost. However, Sidonia may be in more danger than anyone realized, as diabolical forces plot not only from without but also within.

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Joseph Luster is the Games and Web editor at Otaku USA Magazine. You can read his new webcomic, BIG DUMB FIGHTING IDIOTS, every Thursday at subhumanzoids. Follow him on Twitter @Moldilox.