An alien race had invaded Earth years earlier. There was a brief war and the aliens won... but it wasn't a complete victory. They monitored everything and everyone with floating mechanical eyes. These things roamed the cities but they couldn't see everything. People were basically free to do as they please as long as they can hide it from the floating spies. 

Half-demolished cities were slowly being rebuilt. Very clean and predominantly cream or white-colored towers were beginning to rise into the sky.

Sometime during the early days of the invasion, I, along with two others (familiar but now unidentifiable faces) were trapped in some kind of stasis chamber and forgotten. 

But now we've awakened and peopled came to see us during their lunch breaks. They were careful not to attract the attention of the floating eyes. 

All of our friends were 30 years older now. They had aged and grown older while we were in stasis. They had wrinkles and gray hair. Lurch had grown even taller and had graying hair.

My (stasis) companions and I decided to reverse the effects of the stasis and look our true age... as old as our friends... so we stepped back into the machine to age.