Oh. uh. We got this message once that this dude Victor was going to be evil and we wanted to save him from being evil and so we went to help him (because we had all had evil parents and we knew what it would be like). So we kidnapped him from high school.
Excpet thats how he found out he as an android. He didn't know. Eventually he found out that his father was ultron and then his mother died and so like the rest of us he didn't really have anywhere to go so he joined our team and he is super great at video games.