A shriek filled the building. What was going on with Captain America? His dramatic features were distorting down to threatening. His calm contented expression had collapsed down to frightened. His eyes turned green. Green, of all colors. Why would Captain America exhibit traits found in Bruce before a Hulk-Out? Did anything happen that would have altered him so?
Petra tried to recount what had been happening a minute ago. She had just finished chewing out Ironman for overeating to her ancestry and taking it out on Bruce, who was also the Hulk, as demonstrated by the giant green thing hiding from harsh words behind her. Looking back, Petra noticed that Hulk was now looking eagerly to the thing that used to be Steve Rogers. "Hulk smash puny challenger?" Hulk asked Petra, wondering what was going on.
"Wait a little" Petra addressed Hulk. "I want to know what happened to him before we do anything. Did anyone see something happen to Captain America?"
"I didn't see anything" Iron stated, "But did you have anything with radiation on you when you came in?"
"As a matter of fact, yes" Seeing Captain America start actually writhing in pain, Petra spread up and simplified her explanation, "I brought one of my pet spiders tonight, and they contain trace radiation. It's not much, because the originally radiated spiders were several generations ago, but some radiation was passed down."
"Why on earth would you bring something irradiated anywhere close to someone with the super serum?"
"Don't blame me, I still don't see any correlation! Besides, what's a serum-thingy anyway?"
"You have no idea what you've done!" Hawkeye exclaimed, horrified.
"Then tell me what did I do?"
"When super-solder serum meets Gamma Radiation, you get him" Natasha exclaimed, pointing out the Hulk to the ignorant girl that had put all of their lives at risk.
"Why is that a problem?" Petra asked, honestly confused.
"The Hulk having this much ******* control is amazing, not in any way normal at all" Tony exclaimed, right before what used to be Captain America pummeled Tony with a shout of "Language"
"Ok, Hulk, now would be a good time to smash the challenger" Petra said, suddenly understanding the situation.
"Hulk smash!" the Hulk exclaimed, relived that he finally knew what to do.
"Be careful to keep Ironman out of the fight" Petra added. The hulk grunted in agreement before throwing the thing out of the window and charging after it.
"Any additional ideas?" Petra asked, looking at the several story drop that the Hulk had jumped out of only seconds ago.
"Did the Hulk just actually listen to you?" Natasha exclaimed, disbelief coloring her voice.
"Is that in any way relevant to the battle of titans trashing the streets" Petra responded.
"That is actually a bigger problem right now. Petra's outstanding control over her boyfriend aside, I do have a few Hulk grade options available to contain whatever Captain America just turned into." Tony Stark responded. After mumbling a few things to Jarvis, he returned with a small canester. "This knockout gas should be able to put even something Hulk-sized to sleep"
"The version that you can wake up from?" Petra asked, a little worried about the presence of things that targeted her boyfriend specifically.
"…yes" Tony Stark said wondering why that was even a question.
"Then how do we administer it?" Petra responded, in better spirits with a nonlethal solution available.
"And who says that your going?" Hawkeye asked, disbelief clear in his expression.
"Do you really think that I am going to let my boyfriend get into a fight alone when everyone that he is fighting with just got into a huge argument? Right after I just mediated an argument between him and the other main person on his side in the front line agenst someone, actually with several someones, who have just proven to have poor impulse control?" Putting it like that…
"Toss it after unscrewing this cap and it should enter the air with enough concentration to knock out a few elephants. Be carful where you aim it, and don't breathe it in. There is a counter-agent, and Pepper knows how to administer it, so try to get somewhere safe and noticeable if you accidently inhale it" Tony directed "Someone should be able to retrieve you afterwards"
"And you aren't going to protest her accompaniment?" Natasha complained.
"She made a good point. Besides, her webbing has proven effective agenst creatures of this scale and larger, so it might be worthwhile" Tony admitted unabashedly.
"Let's get going" Clint said, and they all went out to the battlefield.