The team disappears on a mission. They go to some alternate dimension, a place where they have to grown up quickly. The Justice League searches for them to no avail and finally it’s time to “bury” their children, and move on. (I’m talking a considerably amount of time has passed, like eight years.) Then, one day they just return. They don’t talk about what happened during those years they were gone, but their families know something happened. Anon!Writer doesn’t have to write out anything horrible, I just want to see major bonding between everyone and them readjusting to their lives.