showMovies() is a function that gets an array of movie information that holds imdbID, Title, etc. Then for each movie, I have to call a different API call via its IMDbID to fetch more details like the Plot. But if I print Overview inside the fetch it is printing the details correctly

but outside that, it is printing nothing to console
.
'Overview' is a global variable
function showMovies(data){
data.forEach(movie => {
const{Title,Poster,imdbID,Year,Type} = movie;
url=BASE_SEARCH_MovieInfo+imdbID+API_KEY;
fetch(url).then(res => res.json()).then(m_data =>{
Overview = m_data.Plot;
console.log(Overview);
// Overview = Plot;
});
});
}