Here is how Defending the Valley, An Alliance at Berk and The Foals Escaped goes in Yuna and the Three Kingdoms.
At the Valley.
Hiccup: Alright, Bud. You ready?
So, The Vikings fought off as many Goblins, Orcs and Uruks they can fight until the battle won.
Goblin Commander: Retreat!!!
The Goblins, Orcs and Uruks retreated!
After defending the Valley.
Casey Jr.: (whistles) Hello, Everyone!
Jeffery Dragonheart: Hello, guys. Great to see you.
Emerl: What's going on?
Princess Luna: A great evil is upon us!
Princess Celestia: Yes, Chernabog's forces has begun their attack and use Jafar and the others to destroy all that stands in their way.
Emma: It's true!
Hiccup: Are you serious?
King Solar Flare: Well, Chernabog won't stop until he controls everything.
Casey Jr.: This is a bad thing. Right?
Human Twilight Sparkle: I'm afraid so.
Jaden Yuki: It can't be true!
Nails the Spider: Wait a minute here!
The Mask: You mean to tell us that Princess Yuna is going to Armageddor to destroy some sort of amulet?
Berkeley Beetles: That doesn't sound good.
Princess Luna: (crying when she misses Yuna a lot) Oh, Yuna! Where could you be?
Jeffery Dragonheart: What's wrong with her?
Hiro: She just doesn't want anything bad happen to her.
Princess Luna: (crying then calms down) I hope she's alright.
Human Rarity: As do I.
Princess Sharon: We can't give up hope. Yuna never gave up hope at all.
Princess Celestia: You're right, Sharon. We must keep our hopes up for Yuna.
Duck: And never give up on her.
King Solar Flare: Let's go! We must gather Po, Shifu, The Furious Five, Cheng Ru, Storming Ox and Croc.
With the rest of the Fellowship.
Shrek: Come on! We're gaining on them!
Prince Derek: You heard Shrek! Let's go!
That night, The Goblins stopped to make camp.
Princess Lilly Sparkle Rose: Guys? Do you think we've made a mistake leaving Yuna alone with Snowdrop, Skyla and Twila?
Daffodil: How're we gotta get out of here?
Prince Edmond: I have a plan.
Pound Cake: THE PAIN! OH THE PAIN!!!!!!!
Pumpkin Cake: I CAN'T FEEL MY STOMACH!!!!!!!!!!
Nyx: (blasted them with her magic)
Goblin Leader: They're getting away! Get them!
Eliza: Run for it!
As the foals ran through the forest.
Roger: Now which way?
Prince Edmond: I don't know.
Stary: It's the BoxTrolls!
Golden Apple: What're y'all taken us?
Fish: This way!
Princess Lilly Sparkle Rose: Come on!
Nyx: What is that glow coming from?
The BoxTrolls took the foals to a very familiar Unicorn wizard.