Adora, Bow, and Swift Wind arrive on Beast Island and make a shocking discovery. Glimmer heads to the Crystal Castle to talk to Light Hope.
- The Bus Came Back: Entrapta returns, having survived being sent to Beast Island.
- Continuity Nod: Entrapta stole King Micah's food... but only the tiny ones.
- Dull Eyes of Unhappiness: People overcome by the island's will-draining signal develop these as they fall into apathy.
- Eldritch Location: Beast Island apparently warps a person's sense of time.
- Everything Trying to Kill You: Beast Island is filled with all manner of unpleasantly named creatures, all of which have razor-sharp body parts and a taste for meat. Also, the vines that sap your will and absorb you into the island.
- Giant Equals Invincible: The beetle creature that attacks the heroes is the size of a small building, and nothing they can throw at it seems to do any more than annoy it. Micah eventually manages to drive it off more through intimidation than brute force.
- Go Mad from the Isolation: King Micah has gone a little loopy from years on Beast Island all on his own with no-one to talk to.
- Good-Times Montage: As Adora begins to succumb to the vines, she starts having flashbacks of her and Glimmer's friendship deteriorating throughout the season... before being reminded of her promise to Angella to look out for her and remembering all the good, fun times they had together as friends. This triggers her Heroic Second Wind, in which she saves her friends and vows to be "the hero she deserves".
- Hell Is That Sound: The island gives off an unpleasant noise, which at first only Swift Wind can hear (being a horse and all).
- Mini-Mecha: Entrapta built a mecha out of technology she scrounged on Beast Island, showing that she not only survived but thrived on the island.
- Non-Indicative Name: The razor-fins have razor-sharp... teeth. Adora isn't sure why they were named as such.
- No One Could Survive That!: Apparently the will-killing signal gets stronger the closer you get to the center of the island, so Micah is reasonably convinced Entrapta hasn't survived. She has. In fact, she doesn't notice it at all. She's too fired up at all the First Ones tech around her to get depressed.
- Saying Too Much: In an effort to help Micah resist the will-killing signal, Adora tells him that Glimmer will need his help to be Queen. This reveals to Micah that his wife is gone, and the shock of that information immediately breaks his will to resist.