The dragon riders were gathered together in a thick fog as they were attempting another trust exercise. The twins were confused by the fog and turned to Hiccup, "Why are we doing this? We can't see anything in this fog."

"That's the point!" exclaimed Hiccup, "It's part of the trust exercise."

"Oh!" said Tuffnut, "I still don't get it."

Hiccup shook her head, "You're supposed to trust your dragon to see for you when you can't."

"Oh yeah?" asked Ruffnut, "Well, how do we know you're not using your special dragon vision to see?"

Hiccup let out a loud, annoyed groan, "Can't you see that I'm blindfolded?"

Astro had blindfolded Hiccup so that it was garunteed that she wouldn't cheat on the lesson. She knew that unless she did, Snotlout would try to call her out for cheating, then she'd never hear the end of it. So she ended up being blindfolded.

"Those two aren't the brightest of Vikings. Are they?" asked Toothless.

Hiccup turned her dragon so he flew away from the twins, "Sometimes they can really be nothing but a couple of idiots."

Toothless chuckled, "I feel bad for you. You had to spend your whole life living near them."

"I'm just thankful that I'm not related to them."

The twins watched as Hiccup and Toothless disappeared in the fog.

Tuff sighed, "Why does that girl always have to speak in riddles? Does she always have to show off her dragon intelligence?"

"I say we trust us." suggested Ruffnut.

Tuffnut nodded, 'Y'know, Sis? For once, I"m actually with you on something."

Ruffnut told her dragon head, Barf to fly higher. But at the same time, Tuffnut told his dragon head, Belch, to fly lower. The Zippleback ended up spiralling out of control and colliding with Fishlegs and Meatlug. All three rider fell into the trees below.

The twins landed on the same branch, the branch that was too weak to carry them, and was breaking quickly. Tuffnut called for Belch to get him off the branch, while Ruffnut told Barf to go for help.

Again, the dragon lost all control of its movement.

Fishlegs whistled to his dragon and made a few hand gestures. The gestures were actually a signal that said, "The others are in trouble. Go help them."

Meatlug saw the signal clearly, and grabbed the twins off the breaking branch.

Hiccup watched with interest.

Toothless quickly caught Fishlegs before he fell with the branch he was on.

Hiccup looked to Fishlegs, "What was that?"

Fishlegs smiled, "That was a hand signal that I've been working on for the past few weeks. And it seems like I've made a lot of progress."

"Hand signal? That sounds really useful."

"I know. Right?"

"We have to start working on that!"

The dragon riders flew back to the arena after the trust exercise ended.

An hour later, Hiccup had already made lots of progress with her hand signals. Her first hand signal was "battle ready". Hiccup raised her hand and made an evil claw movement with her fingers as she commanded, "Battle ready!" Immediately, Toothless lowered his body and spread his wings with his hunting expression on his face.

Next, Hiccup held her hand out. She started with her hand in a fist, they spread her fingers in an explosion gesture, "Plasma Blast!" She threw her shield up in the air and watched as Toothless destroyed it with his fire.

"Toothless," Hiccup pointed to her lips and made a broad u-shape with her index finger, "smile." Toothless hesitated, but made the friendliest smile he could imagine.

"Not bad." commented Astro. Hiccup turned to the boy as he showed off his progress with Stormfly. He made a shoving motion and yelled, "Spineshot!" Stormfly flicked her tail and launched three spines from her tail, one of them barely missing Astro's foot.

Astro picked it up, "Better than last time."

Snotlout laughed, "You call that progress? Watch this!" He winked at Hiccup.

Hiccup made an expression that basically said, "Seriously?"

Snotlout turned to his dragon and pointed to a barrel with a target painted on it, "Hookfang! Annihilate!" Hookfang blew fire at Snotlout instead. Snotlout jumped back and landed against a wooden barrier.

"Bulls eye!" exclaimed Tuffnut.

Fishlegs crossed his arms in front of himself and yelled, "Hug!" Meatlug ran over and pounced on Fishlegs, licking his face playfully.

Hiccup thought about Fishlegs' signal, "That could actually be really useful!"

Now it was time for the twins.

Tuffnut told the dragon to come, but Ruffnut told it to go. The dragon tripped and fell. The twins tried again. Tuff told it to crouch, but Ruff told it to fly. The Zippleback did a backflip, then crashed on the floor.

"Ha!" exclaimed Tuffnut, "I win!"

Ruffnut glared at her brother, "What the hell do you think you're doing to my dragon?"

"Your dragon?" mocked Tuffnut, "Please! You've been breathing in Barf's gas again!"

"Yeah? So?"

"Guys!" exclaimed Hiccup, "Barf and Belch are one dragon. That means you have to use one signal at a time."

"Good idea!" agreed Ruffnut, "Barf! Attack Tuffnut!" Barf used his head to throw Tuffnut across the arena and crashing onto Snotlout, knocking him over.

"That's not what I meant!" Hiccup tried to say."

Tuffnut sat up and made an eating gesture with his hand, "Belch! Eat Ruffnut!" Belch grabbed Ruffnut in his mouth and lifted her off the ground.

"Tuff!" groaned Hiccup, "Come on!"

Tuffnut sighed, "Belch, drop Ruffnut." Belch opened his mouth and let Ruffnut fall onto the floor.

Ruffnut turned to Barf, "I'm taking my dragon and going home!"

Tuffnut shoved her away, "Touch my dragon, and I'll"

"You'll what?"

"... I... I don't know. Don't rush me! Just... I'll tell you tomorrow!"

Both took hold of each head and pulled in opposite directions.

Hiccup groaned, "Guys! Leave the dragon out of it. It's over!"

The twins gave up pulling the dragon, and walked out of the arena on opposite sides of the exit.

Astro walked up to Hiccup, "What was that about?"

Hiccup sighed, "I don't know. But they'll be back. I'm sure of it."

Barf and Belch began to fight each other.