Young Justice takes place in the Marvel Universe, any events in Marvel movies would have taken place in this universe. For example
The city of Bainbridge is on the rise, many people have moved to the city due to the suburb as well as urban living spaces and all the job opportunities. This is the perfect setting for the new "Young Justice" team to train and grow. While training in Bainbridge the young heroes will also have to lead normal lives, attend school, socialize and do everything they can to conceal their identities.
This is a new hybrid type of show, it will be partly a social game with school, and normal non-super characters that will give the show a normal, familiar taste to it :D
There will also however be an action/adventure side to the show for those who wish to apply to be "supers". This includes missions, training and other super-hero type things!
Bands5656 - Ben Nightly
Awesome2210 - Leslie Starr
Bulldoggy559 - Devon Miers
DanieleD - Daniele
Posiedonrox - Joshua 'J.J.' Jefferson