Rapunzel and her father are reminiscing on past adventures, revealing that at last, King Frederic has finally regained his memories. Suddenly they receive an unexpected visit form Cassandra's pet Owl. He shows up exhausted after a long flight, but has come alone and only has in his possession a piece of fruit that only grows on Terapi Island, leading Rapunzel and Eugene into action in their pursuit to find Cassandra. However, they find the village strangely quiet, but after some searching, they find the Lorbs and find themselves reunited with the Captain of the Guards. Surprisingly, he is quite happy and cheerful.
The Captain has had the time of his life on the island. Apparently the Lorbs really like his moustache. The Captain goes into detail about his absence, revealing that after learning of Rapunzel's return to the kingdom and Cassandra's "other arrangements", he found himself on Terapi Island as well as a shocking surprise, a child version of Cassandra. Rapunzel and Eugene suspect something fishy is going on, especially when they see this Cassandra has no shadow. While Rapunzel keeps a close eye on the Captain and "Cass", Eugene and Owl try to figure out the magic behind it. Eventually the truth comes out. Rapunzel and Eugene find out the Captain learned of the existence of a magic wishing well on the island and used it to make child Cassandra appear, but learn it is only a matter of time until the pure wish turns into a full-on nightmare.
Rapunzel and Eugene confront the Captain and finally learn the full story. It turns out after learning what Cassandra had done, the Captain changed his plans and went in search of her where they reunited at the ruins of the maze that Rapunzel and Eugene previously visited. The Captain confronted Cassandra over her actions, leading Cass to lash out at her father for hiding the truth about Mother Gothel and refused to have anything else taken from her. He could not recognize his own daughter after their encounter and after finally seeing what she had become, he was too ashamed to return to Corona to face everyone after what she did and basically went into a self induced exile on Terapi Island. The Captain blames himself and now he wants to make up for it by having a second chance at being a better father to a young Cassandra.
Eventually the sun goes down and the craziness finally happens when various clones of Cassandra appear and start attacking Rapunzel and the others. They once again attempted to reason with the Captain, only to find him attempting to flee with their hot air balloon. All hopes seems lost for the Captain, but he finally comes to his senses after seeing that child Cass does not have a shadow and sets course back to the island to make things right. After a hard goodbye, the Captain atoned for his mistakes and made all the evil Cassandras disappear. Rapunzel, Eugene and the Captain finally set out to return home. Meanwhile, Cass and the Enchanted Girl return to the Great Tree in hopes of finding any usable scrolls for the Moonstone, but after seeing they are all destroyed and upon a single mention of the Demanitus Scroll, Cass changes their destination to Corona.
- King Frederic
- Enchanted Girl
- Lance Strongbow (mentioned)
- Queen Arianna (painted in journal)
Objects of Immense Heavenly Power
- Eugene's Sword
- Cassandra's Battle-Suit
- Princess Rapunzel's Satchel
- Princess Rapunzel's Journal
- Floating Lanterns
- The title is a play on World's Apart.
- Rapunzel and the Captain of the Guard made a reference to Rapunzel's Return when Rapunzel, Pascal, Eugene, Lance, Maximus, Fidella and Shorty traveled back to Corona alongside Ulf after Varian teamed up with Andrew and the Saporians to take over Corona and erased the minds of King Frederic and Queen Arianna with the Wand of Oblivium.
- Lance, Varian, Angry and Red, and Maximus did not appear in this episode.
- The way one of the fake Cassandras say that The Captain of the Guards will pay for his wish in this episode is similar to the way Andrew said Traitors to Saporia pay with their lives when he grabbed Varian to throw him off the ship in Rapunzel's Return and it is similar to the way Varian said Well, I'm afraid Corona will pay for turning their backs on me in Secret of the Sun Drop and it is also similar to the way King Frederic said to Rapunzel about Varian: That boy is dangerous. I assure you he will pay dearly.
- There are several references from Rapunzel and Eugene's time on Terpai Island.
- Eugene mentions the firefly from "King Pascal".
- Eugene also mentions the Vodniks from "There's Something About Hook Foot"
- When the Captain is dancing, it is similiar to Lance and Hook Foot's dancing in "Happiness Is...".
- Rapunzel, Eugene and Alfons all make a reference to the Lorbs' dark magic, including the Idol of Vershaftsbezeigungengien from "Happiness Is...".
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