Focus on a group of characters. This can be a specific team or a role in the story world. Establish memorable relationships between characters.
Example from Literature
The rules of the Hunger Games are simple. In punishment for the uprising, each of the twelve districts must provide one girl and one boy, called tributes, to participate. The twenty-four tributes will be imprisoned in a vast outdoor arena that could hold anything from a burning desert to a frozen wasteland. Over a period of several weeks, the competitors must fight to the death. The last tribute standing wins.— Suzanne Collins, The Hunger Games