After snapping out of the trance, Elena is instantly fearful of the Sirenas. She has given Elena's story a great ending which has also given her story a great beginning. Title Original Airdate November 20, 2016 discovers the incredible mystery behind her amulet. Elena finally loses her temper and accepts the race. Marisa now wants to make peace with the humans. Valentina and Manuel play against Elena and Gabe and they win.
Elena and the Secret of Avalor combines the creative teams from Sofia the First and Elena of Avalor. Sofia is horrified to learn that they are going to meet Shuriki since Roland sent a message ahead telling her they were coming since it is the custom to greet the King or Queen when visiting a new Kingdom. Elena asks what is the meaning of this. Elena then proceeds to tell Naomi the whole story: A coach is heading toward Avalor Palace. He makes a long-winded introduction before Valentina stops him. Meanwhile under the sea, Marzel and Marisa arrive in the Sirena Palace in their home of the underwater Kingdom of Coronado where they meet their parents, King Pescoro and Queen Camila. Sofia heads back to Mateo and the Jaquins with the wand.
Meanwhile, Mateo fights Fiero and soon overpowers him. Suddenly, Elena's boat goes into a side channel, where she finds Shuriki and Fiero, revealing that Victor and Carla were decoys to lure Elena's friends away from Elena, and the drivers of the float flee after having done their part. Insults flew and feelings were hurt resulting in a feud between the two kingdoms. Sofia promises her and James that she will explain everything later and right now needs them to stay hidden for as long as possible. She also reveals that Esteban is Elena's cousin, and then takes back her wand before ordering her guards to seize Elena.
Amber realizes that Sofia is up to something and asks her about it. Marisa goes to talk to Elena anyway, with Marzel and Coco going after her. As they get into the coach, Sofia spots Shuriki's guards take the flute from the boy playing it, upsetting him. The attack is revealed to be a daydream that Sofia is having. But when Naomi becomes obsessed with having the perfect party, their friendship is put to the test.
Pescoro fell in love with her. Elsewhere, Migs, Luna, and Skylar are flying through the jungle and discover that Shuriki is already there in Nueva Vista. Once inside, they meet Armando, who agrees to help. Elena then declares the Sirenas friends of the Avalorans. She even annoys everyone by disrupting their work, blasting trumpets in their ears, and having Manuel shine the sun in their faces to the point where by the time she is done everyone is so angry at her they all want to beat her up. Shuriki orders her guards to throw Sofia's family into the dungeon and to capture Sofia and Elena. However, Elena reveals she's having trouble making herself vanish with it, as her demonstration only makes all of her up to her shoulders vanish, but she can use it perfectly on objects.
Though Shuriki damages the Royal Yacht's mainmast with the Scepter of Night, the Sirenas show up and help Elena by making Duke Cristóbal's ship crash into the sea wall of his palace. Francisco serves Princess Valentina some of 's te da manzanilla. It works and Elena is saved. While Armando distracts the guard, Sofia sneaks past him using her shrinking ability. Elena laments to Naomi how she was trapped in the Amulet of Avalor for forty-one years and then presents to her a broken wand.
Carla interrupts Shuriki's rant to complain about how she is not as prominent on the Delgados' wanted posters despite being as wanted as her father is. Shuriki arrives to greet them and Sofia is wary instantly. Elena and Mateo both protest that they are about to launch an unprovoked attack. Back in the Secret Library, Sofia and Alacazar both review the story Sofia finished. While the princesses lose them, the Xolos attack Valentina's coach, cornering Gabe, Naomi, Esteban, and Manuel on a cliff. Esteban protests that when he helped her invade Avalor she promised no one in his family would get hurt to which Shuriki retorts that she also promised him power which she granted after appointing him Chancellor. When Armando starts counting, Sofia pulls her brother and sister away with her.
On her fifteenth birthday, she was given the Amulet of Avalor by her mother. Elena then tries to blast Shuriki, but only succeeds in blasting aside a tapestry that reveals a painting of Elena's little sister and grandparents. Elena introduces Val to the Grand Council of Avalor. Duke Cristóbal assures Elena that she is more powerful than ever too and has her family to support her as well. Valentina takes this as Elena saying she has no friends and challenges her to a race.
The group arrives at the Maruvian temple where the Crown of Aziluna is, and go inside to find a magical lake. Once Shuriki is gone, Mateo sneaks in and, using the spell his mother gave him, frees Elena's family, who happily reunite with Elena. Shuriki vows to make this a summer vacation that Elena will never forget as she has mastered the Scepter of Night and is ready to have her final confrontation with Elena to decide the fate of Avalor and the royal throne. Elena asks Francisco to play one of his songs, which he does on his guitar. Sofia arrives at Alacazar's house. So Sofia turns herself into a mermaid and dives into the lake. Back at Duke Cristóbal's Palace, the Royal Family of Avalor has arrived back after enjoying the parade.
For the magic to work, Sofia needs to swim across the enchanted waters. With her wand broken, Shuriki's powers are destroyed and she ages into an old woman, and a horribly weakened Shuriki falls down a waterfall and swims away. After Elena defeated Shuriki two years ago, he lost his gold supply. However, Valentina pulls out some te de limon from her grandmother's garden in Paraíso which she calls fuller and livelier than Luisa's tea, which angers her. After pocketing the wand, Sofia convinces Shuriki to let her and her siblings play hide and seek with Armando while she and her parents resume their discussions.