**Three Months Ago**
The sky over Metropolis darkened, casting an eerie shadow over the city. People looked up, fear etched on their faces as the ominous clouds swirled and crackled with energy. The Justice League stood assembled on a rooftop, their expressions grim.
"Kal-El, Diana, this is worse than we thought," Batman said, his voice low. "The readings are off the charts. Whatever is coming, it's not of this world."
Superman nodded, his eyes narrowing as he scanned the horizon. "We need to be prepared for anything. This threat could destroy our entire universe."
Wonder Woman clenched her fists, her mind racing. "We must protect our world at all costs. But what about Alexander?"
Batman's gaze softened momentarily as he looked at her. "We may have to make a difficult decision to ensure his survival."
Superman turned to Wonder Woman, his face etched with sorrow. "We need to tell him."
**Present Day**
Alexander stood in the Hall of Justice, surrounded by the heroes he had grown up idolizing. The atmosphere was tense, the weight of the situation bearing down on everyone. Superman and Wonder Woman approached him, their faces a mixture of resolve and sadness.
"Alexander," Superman began, placing a hand on his son's shoulder. "We have to talk."
Alexander looked up, sensing the gravity of the moment. "What's going on?"
Wonder Woman took a deep breath. "There's a cosmic threat heading towards our universe. It's unlike anything we've ever faced. We don't have much time."
Alexander's heart pounded in his chest. "What does that mean for us?"
Superman's eyes were filled with a father's love and a hero's duty. "We need to send you somewhere safe, Alex. To another universe."
Alexander's mind raced. "What? Why? I can fight alongside you!"
Wonder Woman stepped forward, her voice soft yet firm. "You're our greatest hope, Alex. But we can't risk losing you. You have the potential to be more than just a warrior. You're our legacy."
Superman nodded. "There's a universe where you can grow and become the hero you're meant to be."
Alexander felt a surge of conflicting emotions—fear, anger, sadness. "I don't want to leave you."
Wonder Woman wrapped her arms around him, her embrace strong and comforting. "We know, Alex. But this is the only way to ensure you survive."
The Justice League gathered around, each hero offering words of encouragement and support. Batman handed Alexander a small device. "This will help you adapt to the new universe. It's a beacon that will let us know you're safe."
Superman looked into his son's eyes, his voice breaking. "Be strong, Alex. Remember who you are and what you stand for."
With a final, tearful farewell, Alexander stepped into the portal, his heart heavy with the weight of their sacrifice. As the world around him dissolved into a swirl of colors, he vowed to honor his parents and become the hero they believed him to be.
**Arrival in the Young Justice Universe**
The transition was a blur, a dizzying kaleidoscope of light and sound. When Alexander emerged on the other side, he found himself in the middle of a chaotic battle. He looked around, disoriented, trying to make sense of his surroundings.
"Who the hell are you?" a voice shouted.
Alexander turned to see Robin, Kid Flash, Aqualad, Miss Martian, Artemis, and Superboy fighting against a group of villains. It was Episode 19 of Season 1—"Misplaced"—where the team was battling Klarion the Witch Boy and other powerful sorcerers.
"I'm Alexander!" he shouted back, summoning his strength. "I'm here to help!"
Before anyone could question him further, Klarion attacked, sending a wave of dark energy toward the team. Alexander reacted instinctively, raising his hands and unleashing a bolt of lightning that intercepted the attack, dissipating it.
The team exchanged shocked glances. Miss Martian's eyes widened. "He's telling the truth. I can sense it."
Superboy nodded, his expression determined. "We could use the help. Let's focus on Klarion!"
With renewed energy, the team coordinated their efforts, now including Alexander. He fought alongside them, his lightning powers adding a new dynamic to their strategy. Despite the chaos, Alexander felt a sense of belonging, the thrill of battle bringing out his best.
**After the Battle**
The dust settled, and the villains were defeated. The team regrouped, catching their breath. Robin approached Alexander, his eyes filled with curiosity. "Alright, Alexander. You've got some explaining to do."
Alexander took a deep breath. "I was sent here by the Justice League from another universe. My parents are Superman and Wonder Woman. There's a cosmic threat in my universe, and they sent me here to keep me safe."
Kid Flash whistled, impressed. "Whoa. That's heavy."
Aqualad extended a hand. "Welcome to our team, Alexander. We'll help you adjust to this new world."
Miss Martian smiled warmly. "You're one of us now."
As they led him to their headquarters, Alexander felt a mix of relief and uncertainty. He had a new family now, a new purpose. But the shadow of his parents' sacrifice loomed large in his mind. He knew he had to live up to their legacy, to prove that their trust in him was not misplaced.