The phrase "first synopsis" refers to a brief summary or overview of something that is being presented or described for the first time. It provides a general idea or outline of what will be discussed or covered. Full definition
However, Disney and Lucasfilm have now released the first synopsis for the film focusing on everyone's favourite smuggler from the franchise, teasing a «dark and dangerous criminal underworld» Han Solo -LSB-...] (flickeringmyth.com)
And now, we after all have the movie's first synopsis. (superfans.website)
A first synopsis and photo from The Nun, the upcoming spin - off from The Conjuring, have arrived online. (movieweb.com)