The Hulk was clearly not invincible. Unkillable, but not invincible.

Chimera altered his mind slightly and he was out, slowly turning back to a man, shifting from green to pale.

Sam moved out of the way for Clint to come down, then James. The three men circled the HYDRA experiment.

She fired at Sam. He ducked and rolled, folding his wings in front of him as a defense.

Clint shot an arrow at her and she grabbed it out of the air. He raised his eyebrows. "Never saw that before."

"Not the time to comment," James said, circling her.

"Just wait a moment and both of you step back."

As soon as they were out of the way, Clint pressed a button on his belt. She seemed to anticipate the blast, and threw it forward. It exploded halfway between them, throwing shrapnel all around the room.

Chimera completely disregarded the shard of the chair stuck in her cheek and lunged at the recovering Avengers. Suddenly, she was flung backwards.

Wanda stepped through the broken down door, her hands glowing red as she confined Chimera to the floor. Natasha, Bucky, and Tony followed.

"Did he say what his commands were to her?" Clint asked, picking his way around the rubble.

Tony shook his head. "Just took a cyanide pill and hissed 'Heil HYDRA' as he died."

"Well that's helpful."

"Kill them all," Wanda whispered, haunted.

"What's that?" Bucky asked, walking forward.

"Those were her orders."

"Plan B?" he asked.

The others echoed him, coming to the decision together.

Wanda kept her held down as Bucky retrieved a gun from the floor. He stared down at her muzzled face, raising the gun to look down the sight at the space between her eyes.

They narrowed, but she was unable to move.

There was a bang, and Project X was terminated.

Wanda released her hold on the super soldier and rubbed her own forehead.

"Are there any more HYDRA agents?" Bucky asked her, lowering his weapon.

"Give me a moment and I'll check." She ran her hand through her hair and rubbed across her eyes.

Just then, Peter dropped through the hole. "Thanks a lot guys. I had to find my own way here."

"I told you not to take a shower," Natasha said, walking to the remnants of the chair.

"You can't fight crime when you smell like B.O.," he complained.

"He does have a point," Clint said, putting away an arrow. "Though stinky teenage boy could probably scare off any number of dangerous criminals."

Peter scowled as he removed his mask and walked near Wanda.

She closed her eyes and her palms glowed ever so slightly. "There's more," she said.

"Where?" Tony asked.

"I don't know." In their minds, she told them exactly where. Three o'clock, up.

None of them looked.

"At any rate, we've just killed their best super soldier." Bucky stretched his neck and tucked the gun into his belt.

Suddenly, gunshots rang out around the room.

Bucky protected himself behind the shield, and Wanda blocked the bullets from reaching anyone without metal suits.

James and Tony took to what little air space there was in the room and dove at the room where the bullets had come from. HYDRA agents scattered from the falling debris, firing at the suits. Bucky climbed over the debris from the chair and launched himself through the hole to join the fight.

He flung his shield at the man who appeared to be in charge. It knocked him out, cold. As he retrieved the shield, another agent tried to stab him. He grabbed the blade with his left hand and used it to flip the agent over, killing him with a simple motion.

Bucky stood up and looked around. Tony had terminated a few agents, James was finishing his man, and Natasha was sitting on an agent's shoulders, slamming her hands into the top of his head while he wandered around blindly.

Satisfied that nobody in there needed him, he jumped back out of the hole. Wanda, Peter, Clint, and Bruce stood around a cracked computer as the latter downloaded everything on it.

Gunshots rang around the room. Bucky blocked them and shot back, killing the man with the machine gun. Wanda only had time to keep the bullets from herself and Peter, who was staring at her with wide eyes. She looked around. Bruce was turning into the Hulk. Natasha heard and jumped down to go help. She froze in the center. "What happened to Clint?"