Time skip to the battle with the Destroyer in Thor. There's going to be a lot of time skips.
Jane Foster - Puente Antiguo
Dealing with a guy who claimed to be the ancient Norse god of thunder was the strangest thing Jane Foster had ever experienced in her twenty six years of life. Considering that she was an astrophysicist who shared living space with Darcy Lewis, that said a lot.
After Erik somehow had 'apparently Thor' released from 'SHIELD' custody and they all recovered from the previous day and night they tried to return to work. It was as if nothing had happened although so many things had. Thor had made a delicious breakfast for them all, calling it something Norse and unpronounceable.
Then there was a knocking at the doors. Jane turned to see four people Thor's age dressed and armed like Vikings straight out of a fantasy movie. Three men and a beautiful woman all smiling at Thor. Thor's face lit up like a child's at Christmas and he rushed to let them in, embracing each man in turn. Without preamble he then kissed the woman on the lips. A deep kiss that she happily reciprocated.
Darcy dropped her mug that smashed on the floor.
"Excuse me, the Princess Sif and the Warriors Three." The largest man gestured courteously, with his huge axe.
Jane looked at the new woman, trying to be discrete. Thor had put an arm around her and she leant into him comfortably easily. The Princess Sif, and Thor had declared himself a prince.
If Jane's deduction skills were worth anything this Sif was Thor's wife. Wasn't that a kick in the teeth? Not that she should be thinking that way.
"My friends, my lady, I have never been happier to see anyone. But you should not have come." Thor sighed, letting go of the woman who stared at him with confusion like the rest.
"We've come to take you home. Loki is not himself, we fear some fell creature has ensnared his will." The warrior in green explained as if it should be blatantly obvious.
"You know I can't go home, my father is…dead, because of me." Thor continued. "I am sure Loki makes his judgements well. I must remain in exile." He was saddened and repentant, believing his words.
"Thor, your father still lives. Loki is not himself, he abandoned you to Midgard and scorned our counsel." Sif pressed.
Outside a tornado seemed to take form rapidly, like the anomaly that had deposited Thor. People coming out of buildings to stare. It was right where Thor had appeared.
"Was somebody else coming?" Darcy asked as the people outside began to run back inside.
Thor said that they needed to get everyone to leave the area, and that he would stay with his friends but not fight as he was only an unarmed mortal.
"If you're staying so am I." Jane protested. She wanted to see what all this was, and maybe she could help in some form.
The thing that had come was a huge robot shooting fire from its face. Thor's friends strode toward it without hesitation. They were either very stupid or very brave. Likely the latter.
Red warrior flew at the robot-thing and was thrown back, the assailant encroaching on him. Then Sif landed on it's back and impaled it through the head with her sword.
That seemed to have stopped the thing.
Then the robot turned on itself, as if its metal body were liquid. Sif threw herself off seconds before she would have been burnt to a crisp.
"Run!" Thor shouted to them, as his friends attempted to fall back but got thoroughly beaten by the robot.
In the chaos Thor persuaded the warriors to leave, striding towards the enemy.
"What's he doing?" Jane asked no one, hoping it wasn't what she thought.
"Being a self-sacrificing idiot." Sif answered, sounding angry at something, it might have been Thor or the monster.
Thor said something to the creature and the fire in its eyes died, turning from him. Then it suddenly slapped Thor away with great force, his body tumbling to the ground with the sound of bones breaking.
Jane ran forward to Thor, the robot leaving for good. By the time she reached him he was unmoving, blood spreading across his chest. Dead.
There were sounds of thunder, something hurtling through the air. Jane hardly registered Erik pulling her away, back to the rest of their group all staring.
Why were Thor's friends smiling?
Whatever it was flew directly to Thor and he caught it in his hand as lightning struck. A hammer. Thor's legendary hammer.
A tornado began to form and Thor and the robot were lifted into it. Fire flashed inside the maelstrom. The robot, finally dead, fell to the ground as light and heat exploded leaving a cloud of dust. Thor walked out of the dust smiling, wearing armour and a wide smile.
"We must return to the Bifrost site, I would have words with my brother." Thor told his friends.
"Wait. Donald. I'm afraid you haven't been completely honest with me." It was the Agent from the day before. Jane remembered. The one who had stolen her equipment and research.
"Know this, Son of Coul. You and I fight for the same cause, the protection of this realm. From this day forth you can count me as your ally, if, you return the items you took from Jane." Thor informed the man, who did not seem fazed by a god at all.
"Yes, you can have your equipment back, you'll need it to continue your research. I will need to speak with the three of you about how you would feel working for SHIELD." Agent smiled at them. As long as Jane got her stuff back she did not particularly care.
"We should go, Thor, we can always return." Sif interrupted, holding her sword in a way that made Jane take a step back. The thing had gone through metal so it would be able to go through her.
But rather than attacking anyone, Sif raised her sword and sliced downwards. The empty air cutting as she did so.
Jane could only stare, the Bifrost bridge as an energy tunnel made some sense. A sword that could cut the fabric of reality did not. The cut in the air grew to show a portal to a golden palace.
"My friends, I hope we meet again." Thor took Jane's hand and kissed it, then he disappeared through the portal.
"Wait. I need to debrief you." Agent tried to call them back but gave up.
"We shall return, my husband will apologise for the damage and consternation he has caused you." Sif pushed Red, Green and Blue through the portal and bowed. "Farewell." She stepped through and the portal closed behind her.
"I like that lady." Darcy said, turning to Agent. "You'd best give me my IPOD back too."