The Avengers: Earth's Mightiest Heroes

Season 1 · Episode 20 — The Casket of Ancient Winters

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Episode1. Breakout (1)2. Breakout (2)3. Iron Man Is Born4. Thor the Mighty5. Hulk Versus the World6. Meet Captain America7. The Man in the Ant Hill8. Some Assembly Required9. Living Legend10. Everything Is Wonderful11. Panther's Quest12. Gamma World (1)13. Gamma World (2)14. Masters of Evil15. 45916. Widow's Sting17. The Man Who Stole Tomorrow18. Come the Conqueror19. The Kang Dynasty20. The Casket of Ancient Winters21. Hail Hydra!22. Ultron-523. The Ultron Imperative24. This Hostage Earth25. The Fall of Asgard26. A Day Unlike Any Other

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