subdrama

From sub- +‎ drama.

subdrama (plural subdramas)

1. A drama that makes up part of a larger drama.
   • 1987, Gordon MacDonald, Rediscovering Yourself, page 22:

     The whole of mid-life is a drama, but within the drama several subdramas move side by side. At times they dovetail; on other occasions the subdramas move at different speeds toward divergent objectives.