Crossroads of Destiny

Avatar Roku: Previously, on Avenging Celestial Avatar…
Iroh was a little put off when he said, "Now that your fever is gone and you seem a lot better, you seem different somehow."
"Things are looking up for us, you guys." Zuko said with a grin. With a grin of his own, Tony nodded and said, "Yeah. They are."
From her spot next to a window overlooking the city Azula said, "From here on the inside, we're in the perfect position to organize a coup and overthrow the Earth King and defeat our enemies in one fell swoop.
Azula then put out a good piece to their plan when she turned to them, "If we enlist the help of the Dai Li, then we'll have the necessary forces to accomplish these goals. The Dai Li is the key to this."
"After all, whoever controls the Dai Li will have control over Ba Sing Se." The Scarlet Widow thought aloud.
"What I want is to make a deal." Long Feng simply put it. Azula only gave him a questioning look.
At the Eastern Air Temple, Guru Pathik tried to make Aang see reason by saying, "To master the Avatar State or your other halves, you must open all of the chakras."
Captain America was unprepared for a sonic scream from behind by Shriek. It knocked him forward and Ty Lee managed to land two-fingered jab to the back of his leg. Cap winced from the jab and found that he couldn't move his leg. Cap tried to get up to stop her from hurting Katara, but a boot to the face knocked him out. Katara gasped when she saw Ty Lee jump into the air. The Waterbender tried to bring her water out again, but she was too slow to stop the Fire Nation acrobat from hitting a nerve in her shoulder. It seemed to do the trick as the Waterbender lost all feeling in her body and fell to the ground.
After receiving a vision that a couple of friends were in trouble, Aang stood up and informed, "Katara and Steve are in danger. We have to go, right now!"
"On it." Bruce said as he got up to go with him. Johnny was right behind them and they started running for the edge of the roof. But Guru Pathik stopped them when he called out, "No! Not yet!"
They had slid down to the edge of the roof when they stopped. They looked back up just as the guru appeared. He warned them by saying, "By choosing attachment, the three of you have locked the chakra.
"If you all were to leave now, the results will be disastrous, I promise you." He added with a swipe of his hand. Bruce then asked, "What do you mean?"
"You will never find peace, and the Rider may continue to lose himself." Guru Pathik warned the hosts of the Hulk and Ghost Rider respectively. But looking to Aang he said, "For you, you won't be able to go into the Avatar State at all."
"If you are killed in the Avatar State," Avatar Roku warned his successor after showing the meaning behind the state and faded with the other past Avatars to make his point, "the Avatar will cease to exist. "