Introducing the prototype of his newest product to the world – the Ion Cortex, a device capable of solving the world's energy crisis – Bruce Wayne hires brilliant scientist Dr. Jason Burr (Matthew Lillard) to work on the project. The announcement also draws the attention of one of the most dangerous groups in the world – the League of Assassins. When one of the League's deadly assassins, Silver Monkey (James Remar), attacks Wayne Manor to kidnap Burr while Batman's in Gotham, it's up to Alfred and Katana to keep the assassin at bay until Batman's return. But Katana is armed and ready for the task – with her legendary Soultaker Sword, a weapon she stole from the infamous League of Assassins!
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