Planetary Shutters Closing

10-second cinematic sci-fi action sequence, 16:9, ultra-realistic, breathtaking scale, realistic physics, no visible face.
A fighter flies through a gigantic artificial world.
The interior contains continents, cities and oceans.
Suddenly a planetary defense system activates.
Enormous armored plates begin sliding across the sky.
Each plate is hundreds of kilometers wide.
The world is literally closing.
Sunlight disappears section by section.
The pilot races through narrowing corridors of light.
Entire landscapes vanish beneath moving armor.
The remaining opening becomes smaller and smaller.
The fighter dives toward the last visible gap.
The planetary shutters collide behind him.
Cut.