Ep 4. Rock Solid Friendship

Twilight Sparkle and Spike decide to visit Starlight Glimmer and Trixie in their newly established friendship castle. They are welcomed warmly by Starlight and Trixie, who show them around the castle and introduce them to all the different rooms and amenities.

As they explore, Twilight discovers that the castle's foundation is built on a old and unstable rocky ground. She informs Starlight about the issue and encourages her to seek professional advice before it's too late. Starlight is worried about the cost of fixing the issue and doesn't know where to turn.

Meanwhile, Pinkie Pie and Rarity pop over for a visit and offer to help Starlight raise some money to fix the foundation. They suggest organizing a charity rock concert, with the help of the Terramar and Big McIntosh. Twilight, eager to help out, volunteers Spike and herself to keep an eye on the event preparations while Starlight and Trixie focus on raising funds.

As the concert approaches, the entertainment lineup goes haywire resulting in Bic Mac as the only scheduled performer, and the crowd is already queuing up ready to watch them play. Starlight and Trixie are at their wit's end. Twilight suggests that they all work together to salvage the situation.

The group's synergy pays off as they scramble to fix the last-minute issues, working with Floe, a specialist events coordinator pony, and Big Mac recording an honest, soulful performance that shakes the foundation and brings in more donations than anticipated. After the rock concert, Starlight and Trixie present Twilight and her friends with a "Thank you" note for being such great friends, and the ponies enjoy the rest of the day bonding.

My Little Pony Friendship is Magic season 7 episode 4, "Rock Solid Friendship," portrays stories of charity, friendship, and hard work. The episode mainly focuses on exploring the new friendship castle as Twilight and Spike engage with their long-time friends, Starlight and Trixie. Although Twilight's initial euphoria of visiting turns somber when she discovers a structural problem with the castle, she soon rallies her friends to help Starlight and Trixie fix it in a fun way, with the charity concert.

The show is known for bringing to life the importance of pure friendship, trust, and honesty. It also highlights the power of working together towards achieving a common goal. The episode is perfect for young audiences as it teaches crucial values that will accompany them into adulthood, such as empathy, kindness, and the importance of seeking help when in need.