Just an idea that I had when rewatching 1x15. Basically goes off the idea that rather than traveling back in time, Barry simply stopped the Tsunami and what effects that would.
Central City
Afternoon
'You live in Central City, where it's sunny all the time' was what Oliver Queen had once told him.
It wasn't sunny now. Metaphorically or literally. A slight fog was in the air but, as far as Barry Allen was concerned, it might as well be pitch black as night.
He stood in a suit, alone in a cemetery. Everyone else had already gone, leaving Barry alone in the graveyard as he stood in front of a grave. Barry silently fell to his knees, closing his eyes as tears began to fall down his face.
"I'm sorry…I'm so sorry Cisco."
Star Labs, one week earlier
Afternoon
Caitlin knew Barry was likely going to be back soon with Mardon, so she began searching for Cisco. She could only hope Dr. Wells hadn't gotten to him first. God, she still couldn't believe it. He had been playing them from the start; he had been able to walk the whole time. Caitlin wasn't sure why he'd been doing this, but it was obviously nothing good.
Caitlin walked down into the pipeline and burst into the room where Cisco's machine was. Caitlin couldn't contain the strangled gasp of horror that left her mouth at the sight of Cisco's crumpled form on the ground. She rushed over, frantically feeling for a pulse.
"No, Cisco, no no no." Caitlin cried her mind in denial.
"It's unfortunate."
Caitlin's blood ran cold as the familiar voice spoke up. She looked over her shoulder to see Dr. Wells, standing in the doorway.
"You did this," Caitlin stood up, staring at him betrayal, "why?"
"I didn't want to, but I have worked too hard, for far too long, to let anyone interfere. Even Cisco…or you." Dr. Wells said stoically and Caitlin clenched her hands into fists, tears running down her face.
"Why?" Caitlin asked and he smiled sadly.
"Like I told you before…we all want to go home again. Here we feel safe, where we feel loved. I am truly sorry Caitlin," Dr. Wells walked over to her, his hand vibrating, "in many ways, you have been the daughter I never had…but to me, you've been dead for centuries."
Caitlin closed her eyes, waiting for the end. But it never came and Caitlin felt a powerful gust of wind blow past her. Caitlin opened her eyes to see two blurs whirling around the room and then Barry pinned Dr. Wells to the wall, anger and rage in his eyes.
"Why?!" Barry demanded.
"It was his fate to die, just as it was your mother's to die by my hand that night." Dr. Wells said coolly.
Before Barry could react, Dr. Wells suddenly punched him at high speed before following up with two to Barry's chest and grabbing him, throwing him across the room. As Dr. Wells sped out, Caitlin rushed over to Barry.
"Barry, are you okay?" Caitlin asked urgently, not wanting to lose another friend today.
"Cisco…" Barry trailed off, looking at his friend's unmoving form.
"It's too late Barry…he's gone." Caitlin said her voice cracking.
So, should I continue? What do you guys think? Please let me know in the comments.