The Fourth Symphony of a Nightmare (悪夢の第四楽章 Akumu no Daiyon Gakushō) is the thirty-seventh episode of Ultraman Gaia.
Plot
Fujimiya is tempted by forces that want him to resume his efforts to destroy all humans.
Cast
TBA
Appearances
Ultras
Kaiju
Mecha
- 1 x Peace Carry
- XIG Fighters
- 1 x Fighter Exciter
- 1 x Fighter Sky Surfer
- 2 x Fighter Sky Gainers
- 2 x Seagull Floaters
- 1 x GUARD Underground Penetrate Nuclear Missile
- 1 x Bermann
- GUARD Variant
Home Media
- Ultraman Gaia Volume 10 features episodes 37-40.

Trivia
- At the end Fujimiya meets up with the same girl he saved in episode 20.
- This is the last Mezard to appear.