Steve Rogers clambers onto the side of the speeding Hydra train, the icy wind howling through the snowy mountain pass. Bucky Barnes dangles from a loose railing, his legs swinging over a gaping abyss.

“Hang on! Grab my hand!” Steve shouts, stretching out a gloved hand, his face taut with desperation.

The railing snaps. “No!” Steve cries as Bucky screams, plummeting with the metal into the snowy void, disappearing as the train roars on. Steve collapses against the train, sobbing, his best friend lost.

Atop the train, Gabe Jones crashes into Dr. Arnim Zola’s car at the front, leveling his machine gun at the startled scientist, whose eyes widen in fear.

The scene shifts to the Strategic Scientific Reserve headquarters in London, where an MP escorts Zola into a stark holding cell. The guard hands him his glasses, which Zola slips on, scanning the bare room—a dripping faucet echoes, and an empty gurney looms in the corner.