Flame Icejin: The New Frontier/Episodes/Season Five

Episode	Episode Title	Plot
1 	The Mare in the Moon and the Magical Twin
(月での牝馬と魔法の双子, Tsuki de no Hinba to Mahō no Futago)	The episode, and season, begin with Princess Celestia talking with a redhead teenager, saying that the time has come for him and his twin brother to meet...
Afterwards, Brian, visiting the Valerosa brothers, dreams about his near-death experience. In the dream Stu's infant self warns him to look out. However, before the car is about to hit him, time stops. He looks inside the car, and sees that nobody is driving. This is strange. Afterwards, he goes inside the Griffin house, and, to his surprise, finds both current-day Stu and Vinny sitting on the couch watching an episode of The Uncle Howee Show. As he joins them, the TV signal gets all fuzzy. Just then, Vinny warns both Stu and his father about the upcoming cheese puff invasion. But Brian says that it's a beautiful day outside and opens the door, only for a flood of cheese puffs to start coming in. Vinny says that he'll find another way out, drawing the window curtain back, only to find it blocked by more cheese puffs. As both the dogs and boy go upstairs to find shelter, the entire house starts flooding with cheese puffs. Finding shelter in Stu's room too late, the cheese puffs begin to fill up the room. As soon as all three scream in horror as the cheese puffs are going to eat them, Brian wakes up screaming, waking both Leonardo and Eduardo up. After the brothers ask him why he woke them up, Brian answers that he had a nightmare, involving cheese puffs and time stopping. But Leonardo tells him to go to sleep. As he is about to do so, he notices the moon at the exposed window. It has the image of a unicorn head in it.
Elsewhere, Vinny, in the tree house, sleeps next to Stu, and dreams about being in an empty world where he and a couple scarecrows are the only beings left on Earth. As he tries to look for any survivors in his home, he finds Stu's old teddy bear, a painting, and the closet door, which leads all the way to the room that was shown in the painting with a girl in it. However, the clock strikes six, and the girl pulls the lever, opening the ceiling. Vinny tries to open the door he went through earlier because he's scared, but the door is locked. With no ways out, Vinny is trapped inside the painting, and a monster lashes its tongue out on him, taking him up to its mouth. As soon as he's about to be eaten, he wakes up, catching his breath in relief knowing it was a nightmare. He then notices the moon with the same image of the unicorn's head.
The next morning, during breakfast at the tree house, both father and son tell each other about their nightmares and about the moon. Stu overhears the conversation, and wonders what's going on. He states that both dogs can look in the Townsville Public Library for answers. After they do so, they find information on an alicorn mare known as Nightmare Moon and six legendary gems known as the Elements of Harmony. Princess Celestia, who is already aware of the situation, appears in front of the dogs and Stu, and reintroduces the latter to his twin brother, Dave. Stu wonders how this could be, since he knows that Dave's been dead since childbirth. Celestia informs Stu that she revived him the day he died, and took him in, raising him as if he were her son. She also taught him about magic, and how to use it properly. This could be an opportunity for both brothers to start using alchemy, since Stu knows a lot about science and Dave knows how to use magic. However, Celestia says that now is not the time for congratulations, and that they can begin another adventure with the Torrentuff Animals, this time, to find the Elements of Harmony and save Townsville and the world.
2 	The First Element. Generous Rarity.
(最初の要素。寛大なラリティ。, Saisho no Yōso. Kandaina Rariti.)	
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4 	A Father and Son Outing. Loyal Rainbow Dash!
(父と息子の外出。忠実なレインボー・ダッシュ！, Chichi to Musuko no Gaishutsu. Chūjitsuna Reinbō Dasshu!)	
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6 	Honest Applejack and the Apple-Bucking Contest
(正直アップルジャックとリンゴ座屈大会, Shōjiki Appurujyakku to Ringo Zakutsu Taikai)	
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8 	Pinkie Pie's Laughter. The Key to Happiness.
(ピンキーパイの笑い。幸せへの鍵。, Pinkīpai no Warai. Shiawase E no Kagi.)	
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11 	The Search for Twilight and the Last Element
(トワィライトと最後要素の検索, Towairaito to Saigo Yōso no Kensaku)	
12 	The Beginning of Eternal Night? Enter Nightmare Moon!
(永遠の夜の開始？ナイトメア・ムーン登場！, Eien no Yoru no Kaishi? Naitomea Mūn Tōjō!)	
13 	Luna's Salvation! The Reunion of the Sisters.
(ルナの救い！姉妹の開催。Runa no Sukui! Shimai no Kaisai.)