In the finale of the Infinity Blade trilogy, Siris and Isa must locate and stop the Worker of Secrets, before he and his army of Deathless destroy the world. They find allies to help them, and from their new headquarters they plan and execute their campaign against the Deathless. But in the end, it all comes down to their skill with a blade, their desire to win, and their belief in redemption.
—Simon Hurley