Currently, Lelouch is up to his old tricks: using his geass to steal an enemy Knightmare, directing his forces with inside intelligence, and pulling off miracles.
Kallen wants answers though: did Lelouch use his geass on her, or did she follow on her own.
(It was her choice.)
The Knights are bedeviled by a Knightmare built on the same technology as Lancelot, but with a short-range teleport. But they fight it off in time to collapse the building on their enemies.
Zero again declares the United States of Japan, even though it's just one room.