What I know: They’re a bunch of the sidekicks and young heroes teaming together to fight the lesser evils.
Superboy and Robin were fast friends. They met initially after Batman and Superman teamed up and had to save their mentors, finding that they worked together really well. And so, they started working together now and then, finding that the two of them were a bit of a magnet for other young heroes working under older, more established heroes. It was a shame that they met so sporadically, since they all were on fairly good terms with one another after their bouts, but always just ended up going home afterwards to their mentors or their civilian lives.
And then it happened. Something came up that their mentors just didn’t seem to be able to see. Robin was the first to grow frustrated with his mentor and found that Superboy was having the same trouble. Kid Flash found them soon after, as did Wonder Girl, all of them trying to figure out why their mentors didn’t even seem to see the threat that was appearing on the news. No one over 25, actually, seemed to be able to tell there was anything at all.
They managed to take the threat down together, joined in the end by Blue Beetle and Static, when Nightwing dropped by to congratulate them. He suggested maybe they should start up the Titans again and gave them the location of the old base and they way to activate it again. With a place to meet, that seemed to settle it. They had a bit of a rotating roster, but the Teen Titans were formed.

