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Dimensional Warfare

Summary:

One year after Leo’s sacrifice to stop the Kraang invasion, Raph, Mikey, and Donnie (2018) are still haunted by the loss of their brother. Desperate to bring him back, the trio attempts to break into the prison dimension, only to accidentally veer into an alternate reality.

Meanwhile, Leonardo (2012) struggles with his own self-doubt, questioning his ability to lead as his team faces a new crisis. But when three strangers—Turtles from another dimension—fall through the ceiling, Leonardo’s instincts kick in, and he’s forced to set aside his fears and help them.

With the fate of Rise’s lost brother hanging in the balance, Leonardo and his team join forces to break into the unknown, only to realize that finding the right Leo in this tangled web of dimensions may be harder than they ever imagined… if he’s even alive at all.

Previously Titled: Dimensions of Duty

Notes:

Leo = 2018
Donnie = 2018
Raph = 2018
Mikey = 2018

Leonardo = 2012
Donatello = 2012
Raphael = 2012
Michaelangelo = 2012

Chapter 1: Prologue

Chapter Text

But that was a year ago.

The sky had erupted in a brilliant explosion, a burst of light that burned itself into their memories. The shockwave had torn through the air, blowing the tails of their bandanas as the unknown heroes of the day stood frozen in its wake. Raphael, Donatello, and Michelangelo watched helplessly as debris rained down around them. Tears, unbidden, streaked down their faces. Their hearts stopped in their chests, and their breaths came in ragged gasps. They prayed to hear their brother’s voice once more over the coms. The voice that never came.

Mikey had tried. He really had. But no amount of his "magic hands" could fix this. The ache in his heart was unbearable. Raphael crawled to him, pulling him into his shell and wrapping him in an embrace that was meant to comfort but only deepened the pain. Mikey broke down, silent sobs wracking his body.

They both turned to Donnie, who stood motionless, staring at the mark left in the sky. It was slowly fading, the swirling clouds consuming the last remnants of its brightness. His tears were silent, tracing paths down his face, but he didn’t move. Was he breathing? Neither Raph nor Mikey could tell. Donnie’s eyes were wide, unblinking, fixed on the vanishing phenomenon.

Was he even thinking? They couldn’t say. But they’d never seen him look so... lost. So broken. They weren’t sure which word fit.

One thing they did know for sure—Leo had gone through the portal. Leo had banished the Kraang back to their prison dimension.

But that was a year ago.