The movie Helsreach takes place during the Third War for Armageddon, where Grimaldus, the newly appointed Reclusiarch of the Black Templars, leads a team of Black Templars, supported by the 101st Armageddon Steel Legion and Legio Invigilata's titans, to defend Hive Helsreach from an Ork invasion.
Helsreach: The Movie
Battle-hardened forces, the Black Templars and Steel Legion, join forces to protect ravaged planets of Armageddon from a relentless Ork attack.
