The squad heads for the water realm of Salineas, ruled by Princess Mermista, but first they need a ship. Catra sets sail with Force captain Scorpia.
A recruitment trip to Dryl goes awry thanks to a virus that corrupts Princess Entrapta's robots. When Adora transforms, it infects She-Ra, too.
It's time for the Princess Prom, hosted by Princess Frosta. Adora wants to recruit her, but friend troubles and unexpected guests get in the way.
Glimmer takes Adora and Bow to the secret sorcerous realm of Mystacor for a vacation, but Adora's nightmares of Shadow Weaver persist.
Everyone blames themselves for Entrapta's loss, but they're wrong about what happened. Glimmer tries to hide the glitches in her powers from her mom.
Glimmer concocts a plan to introduce Adora to Bright Moon, but it all goes wrong. Adora flees into the woods, where she meets an old woman named Razz.
Swift Wind comes to Bright Moon, Entrapta decrypts the First Ones data crystal, and Light Hope tells Adora about the history of She-Ra and Etheria.
Adora enters the First Ones citadel with Catra on her tail. Inside, they're caught in an illusion simulator that brings back painful memories.
Entrapta's plan to weaken the other runestones allows Catra and Scorpia to attack Bright Moon, but Adora and her friends are ready to fight back.
To hide a mess Eddie made, his girlfriend, Wendi, tries to distract Peggy by insisting she take a day off; Peggy accepts the offer and requests Wendi tag along, hoping to teach her a lesson; Pat introduces Timmy to his secret dog.
With her friends and the sword held prisoner in the Fright Zone, Adora turns to the Princess Alliance for help on a dangerous rescue mission.
When Bumblebee begins to suffer amnesia, his partner, Windblade, comes to the rescue, and repairs his memory chips, enabling him to rediscover his past adventures on Cybertron. Once his memories are repaired, Bumblebee gets a clue that will lead both him and Windblade to complete their current mission and save their friends, unaware that Megatron sent his Decepticon assassins to hunt them down.
Country music performers Travis Tritt, Shania Twain and Jake Owen showcase upcoming musicians in Nashville.
Alliances are dissolved as every team fights to earn their way into the Finals. Paulie and Cara Maria’s season-long flirtation turns into something more. TJ reveals a shocking twist regarding the Final Challenge.
Daniel breaks down a video of a woman getting trapped on a car elevator, hosts a debate between two friends over the number of holes in a straw and endorses some new sports.
Abbie and Adam are struggling with their friendship and Nathan feels let down by Chloe who puts Sam, first. Faith finally feels like she's one of the gang and Scott takes the crew Tank driving!
Jeff is concerned with pleasing his new client's girlfriend who will be making most of the design decisions; Lea Black is in town to get started on her kitchen demolition; Jeff realizes his employees lack motivation; Megan makes a difficult decision.