A group of kids enter the worlds of various series because of an entity that merged the worlds with the real world (one at a time) and freezes time in the real world, but another entity chose those kids to protect the world from being plunged into the "dark world" (though they don't get any powers, just some gadgets and temporary agelessness until the worlds are separated), and in the very end the entity that chose them is the one that planned all from the very beggining and didn't actually choose those kids, he told them he did so he could get them out of the way (still thinking on how those kids actually get saved) and later on faked his own death. Also there are really minor time skips between the times they are in each world because they failed to destroy the entity (the first one mentioned) and the team slightly changes.
So, what do you think?
So, what do you think?