Miguel is back in 2099 — but it's a world he doesn't recognize. One that's altogether more…sinister. He wakes to find himself held captive by six villains. But how has his native timeline become so different from the one he left behind? Can Spidey escape his tormentors, find a way back to the past and fix the future? Or will the Sinister Six reign supreme in 2099? Meanwhile, Roberta Mendez, a.k.a. Captain America 2099, returns to her own time in a bid to find her family. But little does she know that the heroes of this era are being hunted in an all-out Civil War 2099! Will this be the end of tomorrow as we know it? Or can Spider-Man and friends find a way to set the timeline right?