Mordecai and Rigby made it to the entrance of the Ice Kingdom.

"So," Rigby said. "Where do you think that old dude is?"

"If I were to guess," Mordecai said, pointing to a pointy ice castle on top of a mountain, "it would be that ice castle up there."

"Alright, cool, how are we going to get up there?"

"I… uhh… I have no idea."

"Hey guys!" A voice called from afar.

Mordecai and Rigby turned to the direction of the voice. Approached them was Finn and Jake.

"So you refused to stay in the house huh?" Jake said.

"You bet your yellow butt we did!" Mordecai said. "I don't care what you say. We think we can handle that guy, and even if we can't, we're not going to abandon our friends."

"Well Jake?" Finn said.

Jake took out a stop watch and checked it. "Twelve minutes and forty five seconds. Not bad, not bad at all!"

"Huh?" Mordecai said.

"You guys passed the fifth trial and thus ascended to heroes!"

"What?!" Rigby exclaimed, "All that we're not ready bushiness was just a test?!"

"Dudes," Finn began, "a true hero must never let anything come between their duty as heroes no matter what people say. When your friends are in a pickle, it is up to you to get them out of a jam and don't let anyone tell you other wise!"

"Yeah what Finn said." Jake said.

"Woah, awesome!" Mordecai said.

"Yeah! We're heroes!" Rigby said.

Meanwhile inside the Ice King's castle, Margaret was sitting against the cell wall while Eileen was looking out the window with a sad expression on her face. Her eyes then narrowed and developed a shocked expression when she saw Mordecai and Rigby at the edge of the Ice Kingdom.

"Margaret! Margaret!" Eileen whispered. "Come look!"

Margaret got up and looked in the direction Eileen was pointing.

"What the—?!" Margaret whispered. "Is that Mordecai and Rigby?!"

"Would you two stop whispering so loudly?" Ice King said, peaking in from a door across the room, "I'm trying to take a nap!"

"We're sorry," Margaret said "it won't happen again."

"What are you two staring at outside of the window?" Ice King said approaching a telescope pointing outside of a window. "If Gunter snuck out again I swear I'm going to give her such a—"

Ice King saw Mordecai, Rigby, Finn and Jake stationed at the edge of the Ice Kingdom.

"Drat!" Ice King said. "Finn and Jake are here, and they brought along that raccoon giant blue jay?! I can't believe they managed to follow me through the interdimentional gateway!"

"Their names are Mordecai and Rigby." Margaret said.

"Yeah, and they are coming to rescue us!" Eileen said.

"Normally I would be worried and cursing their names in a form of a soliloquy," Ice King said, "but due to Finn and Jakes absence I have become more prepared!"

Ice King took out a bamboo rod and aimed it out the window, he blew on it and a dart flew to the ground below.

Meanwhile, Mordecai, Rigby, Finn and Jake were still conversing.

"So how are we going to get inside?" Rigby asked.

"No worries," Finn said, "Jake can use his stretchy powers to take us all the way up to the Ice King!"

"One stretchy dog ride coming u—AAAOWE!" Jake said.

A dart hit Jake in his leg and it caused him to fall over.

"Jake!" Finn shouted, running towards jake "Are you okay buddy?"

"Yeah," Jake said. "Just some stupid dart hit me in the leg."

Jake stood up and reached out his arm to grab it but couldn't reach.

"Hey I can't reach it. Wait… why can't I reach it?"

"Umm… just bend over?" Mordecai suggested.

"No! I mean why isn't my arm extending?!"

Jake stretched his out his arms and legs and made a few silly movements.

"I can't stretch anymore!" Jake said.

"Must be something in that dart that caused you to lose your powers." Finn said. "Must be the Ice King's doing! Don't worry, we'll make him fix you up!"

"Yeah don't worry Jake, we'll make him pay!" Mordecai said. "So Finn, what's plan B."

"Guess we're taking the long walk up that path towards the Ice Kings castle. Let's go."

The four proceeded to a ramp that circled around the mountain that led straight to the front door of the Ice Kings castle.

"Yes! Direct hit!" Ice King said. "Now that Jake has been injected with anti-magic juice, that should buy me quite a bit of time before he gets his powers back, which means I can finally have a fair fight!"

Ice King reached into his robes and took out a walkie-talkie.

"Attention Snow Ninjas. Attention Snow Ninjas. We got a code 232, Finn and Jake with two smelly animals. Search and beat the lump out of them. Repeat, search and beat the lump out of them!"

"How much farther do we have to go?" Rigby asked while groaning.

"We still got quite a bit. I don't blame ya for complaining." Finn said.

"Sorry guys," Jake said, with sadness in his tone, "out of all the times to lose my powers. This is jank!"

"Don't beat yourself up about it Jake." Mordecai said. "It wasn't your fault. Besides I think I'm starting to see the castle come into view!"

"Hold up!" Finn said, extending out his hand to block the other's way, "Something's coming out of the snow!"

The snow began rising up. Multiple snow men with black cloth wrapped around their mouths rouse up. Some of them had katanas others had shurikens.

"Oh snap!" Finn shouted. "Snow Ninjas!"

"For once I think I'm going to need a weapon." Jake said.

"Oh yeah… Let's see…"

Finn quickly searched his back pack and took out a small dagger, and threw it to Jake.

"Not as big as I was going for, but it will do!"

"Umm what about me?!" Rigby shouted.

"Umm… Umm… sorry, but this is all I got left!" Finn took out a pink rubber toy hammer with gold stars on it.

"I thought I was a hero, not a heroine!" Rigby said.

"Here they come!" Mordecai shouted, readying his sword.

The ninjas approached them. One of the katana weilders them ran towards Finn. They exchanged a few sword clashes until Finn slashed it in two. Another katana user ran towards Mordecai. Mordecai jumped and stabbed it in the face, taking off his head and making it stuck to the blade of the sword. When he landed, he swung his sword making the head fly through the air knocking out three of the snow ninjas at once. A snow ninja threw a shuriken at jakes arm.

"Owe! Owe! Arg it hurts!" Jake said.

The snow ninja walked closer towards Jake with a concerned expression on his face. The snow ninja knelt down and Jake quickly stabbed it in the face.

"Haha! Psyche!" Jake said. He got up, brushed shirinken out of his arm, and ran to fight other snow ninjas.

Rigby gave out a battle cry and whacked a snow ninja with his pink rubber mallet, destroying it completely.

"Man this thing is more effective than I thought!" Rigby said.

"Girrrrrrrrrrrrrrrrrrrrrrl power!" The toy said in a little girl's voice.

"Aight, well… I could live without that."

Meanwhile in the Ice Castle, Margaret and Eileen where watching the battle out their cell window.

"Woohoo go Mordecai and Rigby!" Margaret said.

"Yeah kick their snowy butts!" Eileen said.

"Oh dear, they're actually winning!" Ice King said. "Looks like I'm going to have to send out the big guns!"

The Ice King once again took out his walkie-talkie.

"Big moma this is Ice King… Eliminate them!"

"How are things looking Finn?!" Mordecai said, kicking one of the snow ninjas.

"Not many left. HYAH!" Finn said, slashing a different snow ninja.

Suddenly a rumble was heard. Jake looked down the edge of the path.

"Uhhh… G—guys!" Jake said.

A giant ice golem climbed up from the edge of the moutain. It had an angry expression on his face with sharp icicles for teeth.

"Holy crap!" Mordecai shouted.

"Don't lose your cool Mordecai," Finn said. "every enemy has a weakness!"

Finn began stabbing the hand of the golem; the golem raised that hand and used it to grab all four of them. Rigby manage to slip out, causing him to fall back on the path.

"Don't worry guys! Hang on!" Rigby said.

Rigby jumped on the mountains edge and started to climb it as high as he could. He jumped off and landed on the snow golem's face obscuring his vision. It let go of Mordecai, Finn, and Jake, causing them all to fall onto back onto the snowy path. The golem stepped backwards and slipped off the mountains edge, causing it to fall off the mountain. Rigby jumped off and managed to grip the edge of the path.

"Rigby!" Mordecai called.

He quickly got up and ran towards Rigby.

"Quick grab my hand!" Moredaci said.

As Rigby reached out his arm, the golems arm over shadowed them, and began to descend over them.

"Look out!" Finn shouted.

He tackled Mordecai out of the way. The hand gripped onto the path under Rigby. The path began to crack and caused the part of the path that the Golem's hand gripped to shatter causing the golem to fall of the mountain completely.

"RIBGYYYY!" Mordecai cried out.

"Oh no…" Finn said.

Mordecai went down on his knees next to the broken path. Finn walked behind him and put his hand on his right shoulder.

"He was, without a doubt, a great hero. Probably the greatest one I know."

Jake walked up to them and put his hand on Mordecai's left shoulder. "Don't worry dude, we wont let that old icy fart get away with this. We'll avenge Rigbag, we all will."

"Thanks," Mordecai said softly, "also his name was Rigby."

"Oh sorry." Jake said.

Finn and Jake began to continue walking upon what was left of the path towards the castle. Mordecai looked down the mountain. It was very foggy, obscuring the ground below. A tear formed in his eye and slowly went down his face. He whipped it off with the back of his hand and continued to follow Finn and Jake to the castle.