After waking from this dream, I thought:
It was the future in the Marvel Universe, and the Milky Way Galaxy was no longer known as that – it was now the Los Angeles Galaxy.
The heroes were wanted dead by their enemies, more than usual, so they placed themselves in giant cosmic cube (not the Cosmic Cube) in space, away from Earth. In fact, Earth was hidden in between folds of time. The Sentry was the hero in charge, and if you never heard of him, barely have I. (I don’t know how he ended up in my dream.)
Fed up with holing themselves up, a nearly invincible hero (Wolverine?) that has lived for 1000 years wants to rally against the forces keeping the heroes trapped in the cube.
He asks the leaders (including The Sentry) to reinstate the last wave of Iron Men (they’ve all been mechanical for a while now).
The Sentry is the only one to see the light, so he allows the mission.
This is the point when a phone call woke me up. So I should have mentioned my full statement: