For teens and young adults from disadvantaged backgrounds, YouthWorks — a mostly state-funded collaboration backed locally by Worcester Community Action Council and partners — provides more than something for them to do over the summer. It’s a stepping stone to the future. “What Worcester is doing is terrific,” said Anne Berrigan, a program administrator. “YouthWorks is one of the best kept secrets in your town.” Not for long! Alex L. Khan takes an in-depth look at what’s working for these Worcester youths.