My Little Pony: Equestria Girls Season 1 Episode 5 Rollercoaster of Friendship

When her grandmother loses her business, Rarity decides to travel with the rest of the Equestria Girls to the amusement park run by her estranged childhood friend Vignette Valencia to help save it. Rarity's friends are hesitant to trust Vignette, who appears to be genuinely friendly and generous, and who promises to help them organize a fundraiser for Rarity's grandmother's boutique. Vignette Valencia, who is also the park's owner, offers her residence to the girls, and even arranges for Rarity to showcase her designs at the park's fashion show. Despite some rocky moments early on, the Equestria Girls end up having a great time at the park, and feel like they've finally made up for the years they spent apart from each other.

As they plan the fundraiser, the girls start noticing Vignette's controlling behavior, which starts to become a cause of worry for them. They find out that Vignette is using a bracelet that helps her control the park's staff and attractions, leaving the girls in a large bind. In addition, Vignette uses her position to broadcast their fundraiser with the intent of gaining a massive audience, and gaining more population to control with her means of promoting the park. Ultimately, the Equestria Girls have to use their magical abilities to stop Vignette.

The Equestria Girls in My Little Pony: Equestria Girls season one episode five, which is titled Rollercoaster of Friendship, try to help out a friend in need, and eventually discover the truth underneath. Though a happy ending overall, the episode does not shy away from showing the darker sides of friendship, and how people can change over time, resulting in a moral that favours honesty over seemingly false promises.