Serial material is a term used to describe any type of media that is released in parts or episodes, such as television shows, movies, books, and video games. The two crossword solutions for this term are SAGA (4 letters) and PERILS (6 letters). A SAGA is a long story or narrative, usually involving heroic deeds and adventures. PERILS are dangers or risks that one may face. Therefore, serial material can be seen as a long story with many risks and adventures.