India, Nov. 27 -- Stranger Things Season 5 Volume 1 introduces viewers to the idea of 'crawls'. Mike and his friends all carry out 'crawls' of the Upside Down, to map the place, while Hawkins remains in quarantine.

With the Spider Monster having reared its head in Season 3, many might be wondering if the 'crawl' has something to do with this creature. However, that is not the case at all.

With Hawkins under quarantine and the military present, our heroes have to get creative in order to get around. Cue the crawl. Here, they use code words, take positions in a planned manner, and make use of radios to communicate.

When Hopper enters the Upside Down, his mission is to find Vecna and kill him. The only problem is nobody seems to have seen...