Steve wakes to a world terrorised by kaiju and steps up to pilot a jaeger. Natasha assists. Bucky wakes as the Winter Soldier and struggles to find a new identity. Steve is entirely unhelpful. And while Steve comes to terms, someone else saves the world.
Mature, AU. I’m a total sucker for Pacific Rim/MCU crossovers – this is unique in that it actually merges the two worlds, and does a very good job, too. This allows the story to focus on Steve learning how to deal with this new Bucky, who is both his old friend and someone very much different.