Both Loki and Fenrir had seen the rainbow light of the Bifrost. "Fenrir, I need you to distract Thor. Don't kill him, but make sure he does not return for a while longer yet." Fenrir nodded his head, and seeing as he was still in human form, saluted. Then he slipped away, using secret paths his father had shown him which led out to the Bifrost. Fenrir left, and entered Midgard.
When he landed, panting, there was a bit of a commotion. Some mortal in a suit was saying something to him, but Fenrir ignored it. Instead, he focused on teleporting closer to his uncle Thor's position. About a mile away from the town his uncle and four Æsir were, he shifted into his form of a large, gray wolf. He used his magic to create armor upon his body, forged of the strongest metals and most durable cloth. He teleported all the way into town and saw them. His uncle was standing with the warriors and three Midgardians. Fenrir growled and snapped at civilians, but wouldn't hurt them.
He saw the Warriors Three advance, but Sif was nowhere to be seen. The mortals and Thor seemed to be preoccupied with the task of getting people out of there, which Fenrir could admire. Although, it did hurt that they thought he would ever hurt an innocent person without reason.
Fandral and Hogan had said something to each other, and now Volstagg was being launched at him. The man did have considerable mass, which worried Fenrir. After a genius idea, Fenrir reared up, just as Sleipnir showed him, bringing the pads of his paws to meet Volstagg. The large man flew back, hitting an automobile, and Fenrir advanced.
He leaned over Volstagg, with a menacing growl. Suddenly, there was a feeling of something large falling on top of him, and something pierced a chink in his armor before being withdrawn. Fenrir could only assume Sif had somehow gotten the drop on him. He stood shakily for a moment, before turning his head and biting down on her foot. The next move was one Jör had shown him. He kept hold on Sif, and rolled quickly and viciously before tossing her on the ground. She groaned. That was good. As much as Fenrir might've disliked Thor's friends, he did not wish them dead. He sprang up, limping a little on his one leg. Fenrir realized the battle would go nowhere like this. He called upon his magic, and shifted forms. When the dust around him cleared, he saw the Warriors gasp. His new form was that of a dark green and silver dragon, one story tall. He spread his large wings and roared at them.
He could hear Sif call something to her friends, and they retreated. Fenrir let out a blast of magic along the street, avoiding the houses. The beam grazed the Warriors, sending them through a building. He really hoped that Thor and his mortal friends evacuated everyone. Fenrir saw Thor speaking to Sif, and she ran off. Fenrir sent as weak a magical attack as he could towards Thor, his uncle was mortal, after all. Thor dodged, and said something to his friends, who ran off. Thor slowly walked in front of Fenrir.
"Nephew, whatever I have done to wrong you, whatever I have done to lead you to this, I am truly sorry." Oh no. Fenrir was feeling even more guilty than he did before. His uncle was still walking closer. "But these people are innocent. Attacking them will gain you nothing. So take me, and end this."
Fenrir paused. Did Thor really think he wanted to kill him? He let out a dark, raspy chuckle. "Now really uncle? Kill you? Did you not notice the lack of bodies? The lack of damage to the mortal's homes? I don't want to kill you. Where would you get that idea? I just want to slow you down."
With that, he turned, and hit Thor towards his friends. A mortal woman shouted and ran towards his uncle. Did they not just hear what he said? He had no wish for Thor to die. Silly Midgardians. Thor landed roughly, and the woman stood over him. Fenrir was worried when his uncle didn't get up immediately. He craned his neck up, and was truly afraid. Did he underestimate his own power? Surely not. Thor may not have Mjolnir or control over thunder, but the man was still unbelievably strong. Right? Fenrir started to panic. Was his uncle okay? If he hurt Thor, Fenrir just wouldn't know what to do.
He shifted back into human form, and slowly approached. That was when he saw the mortal woman crying. Oh no. Oh no. This was not good. Fenrir hoped beyond belief that Thor was alive.
Fenrir saw something in the sky flying towards them. Was that? It was! Mjolnir was headed straight towards Thor. He backed up, and saw the male human pulling his friend away from Thor. The hammer streaked down, and Fenrir saw it land in his uncle's hand. The process of Thor regaining his power was incredibly impressive, and Fenrir held his hands up fearfully. His father told him to slow Thor, and he did. Fenrir was not stupid, and refused to mess with Thor when his uncle was like this.
Fenrir sighed when his uncle grabbed him firmly by the arm and marched him towards his friends. The woman who had been crying spoke first. "So is this how you normally look?" She tried to ignore Fenrir. He sighed at how she sounded. If Thor didn't notice, he was really ignorant.
"More or less." Fenrir groaned internally at how much bravado was in his uncle's tone.
"It's a good look." Seriously? He was centuries younger than his uncle and even he could see it.
Thor turned to the Warriors. "We must go to the Bifrost site. I would have words with my brother."
It was then that the agent man from before approached. "Excuse me! Well Donald, I don't think you've been completely honest with me." Fenrir snickered. Donald? He wanted to know what that was about.
"Know this, Son of Coul. You and I, we fight for the same cause, the protection of this world. From this day forward, you can count me as your ally - if you return the items you have taken from Jane."
"Stolen!" The woman, Jane, seemed to have a need to correct Thor.
"Borrowed." The agent corrected Jane, in that same pacifying voice he had been using. "Of course you can have your equipment back. You're gonna need it to continue your research."
Thor decided it was high time to go back to impressing the woman. "Would you like to see the bridge we spoke of?" Fenrir was getting real tired of holding his sass in.
In a tone that was far to casual to be true, Jane responded. "Uh, sure." Thor grabbed her with his other arm, and flew.
Fenrir heard the agent shout something, and stuck his tongue out at the man. Yeah, it was immature, but Fenrir couldn't help it.
After they reached the site of the Bifrost, and Thor let Jane go, he pulled Fenrir closer and shouted up. "Heimdall, open the Bifrost!" When there was no opening Bifrost, Thor looked up, confused. "Heimdall? Heimdall! He doesn't answer."
Hogan thought now to be the best time to speak up. "Then we are stranded." Seriously, was today 'ignore Fenrir day'? If anyone asked him, he would tell them what happened.
"Heimdall! If you can hear me, we need you now! Heimdall! We need you now! Heimdall!" Seriously, uncle Thor? Fenrir thought it was getting a little repetitive.
Suddenly, a large vortex swirled down. Fenrir didn't know how Heimdall got free of his prison, but he didn't like it. Thor gripped him closer and said something to Jane. Oh heavens above, they were kissing. No, stop. When they were done, Thor pulled Fenrir into the Bifrost with him.