When Green Hornet and Kato respond to a break-in at a federal reserve bank, they find themselves caught in a battle between federal troops and a band of thieves. These would-be robbers are no common street thugs. They are a well-trained and expertly led force, armed with high-powered exoskeletons. It's all-out warfare, with the new Green Hornet and Kato trying to keep downtown Century City intact. And, there's the simmering relationship between Britt and Mulan. How far will our heroes go?