Ep 10. A Royal Problem

When the residents of Equestria start having trouble sleeping, the Princess of Friendship, Twilight Sparkle, knows she needs to investigate. She and her friends soon find out that Princess Luna is the cause of the disturbances, unknowingly projecting her dreams into the dreams of everypony else.

With Twilight's help, Princess Luna is able to get better control of her dream abilities, but that's not the end of their troubles. Princess Celestia reveals that she and Luna have been arguing a lot lately and asks Twilight for help in resolving their disagreements. Twilight decides to switch places with the sisters, becoming Princess Luna's advisor while her friend Starlight Glimmer does the same for Princess Celestia.

As the swap begins, Twilight finds herself dealing with Luna's insecurities and trying to help her realize her worth as a ruler, while Starlight struggles to keep up with Celestia's jam-packed schedule. Meanwhile, Twilight's own advisor, Spike, finds himself overwhelmed by Celestia's regal demands and must learn to trust his own abilities.

As the two pairs work to overcome their respective challenges, they begin to develop a deeper understanding of each other's roles and the struggles they face. Through their newfound empathy and cooperation, they're able to finally resolve Celestia and Luna's disagreements and restore balance to Equestria.

"A Royal Problem" is an episode about the importance of communication and understanding, even between those in positions of power. It's a reminder that everyone has their own struggles and challenges, regardless of their status, but that working together can lead to a better future for all.