from npcs at BS-Town. From each 3 parts u must do all other quests first. last is daily quest.
so there are 3 daily quest what ive counted.

then will u ask me where that place is where u solve them u must enter the standard level and access through the portal there. and maybe invite 1-2 friends... alone is a bit hard.

funniest quest is the radiactive one, where there are green birds with megablasters and u must grab a shield and after run the boss, but be fast, if not, u will die, haha!
just try it u will c its fun!