![](https://movie-intelligence.com/assets/images/noimageepisode.png)
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Dark Heart
Haggar seeks to avenge the break up of her relationship with King Alfor. She imprisons Alfor's spirit in a Crystal Robeast, which soon does battle with the Voltron Force. But if they destroy the robeast, they will also destroy Alfor's spirit.
Other episodes for this season
![Escape from Bastille-12](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Red Lion Breaks Loose!](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Building the Forces of Doom](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Lost Souls](https://movie-intelligence.com/assets/images/noimageepisode.png)
![A Rift in the Force](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Shades of Gray](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Bride of the Monster](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Dominus](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Voltron vs. Dracotron](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Descent into Madness](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Pidge Gets Iced](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Dark Heart](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Big Lie](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Trial of Voltron](https://movie-intelligence.com/assets/images/noimageepisode.png)
![The Troika Moons](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Biography: The Voltron Force](https://movie-intelligence.com/assets/images/noimageepisode.png)
![Queen Ariella](https://movie-intelligence.com/assets/images/noimageepisode.png)