Our heroes are a force of nature. United, there is nothing in this world that can stand against them. Divided...well...things aren't going so well. Whether due to a plot device, a scheme by the villain, or simple internal strife, the heroes are separated. They may be scattered all over the world, they may just go their separate ways, but the point is they are no longer a team. It may take multiple story arcs to get them back together, or they may never get back together. Even if they do get back together, their separate adventures and tribulations will have caused them to change and drift apart in ways they could not have foreseen.