Flynn and Eve are going on a date - specifically to see a classic movie and relax and have a date with Flynn turing his librarian brain off for five minutes
Side note I really love the dynamic between them where one says something that the other gets kind of touchy about but they don’t make a big thing of it. It’s cute
It’s also nice to see a subject that Eve knows way more than Flynn. She’s clearly a massive buff and able to annoyingly quote the dialogue in the cinema (to the world: don’t ever do this)
And then they’re sucked into the movie, of course they are
After being missing for a while the other Librarians go to check on them and find the cinema owner, Jade, somewhat perturbed that one of her theatres now has Flynn and Eve looking for a way out and being unable to communicate with the outside world. At least Jake has finally realised he can’t sell the “we’re Librarians” line.
They do some theorising back at the Library, bringing in ley lines, musing about the history of the cinema and the director of the film behind it, with lots of knowledge from Jenkins who seems to have been a fan of the director, and come up with the idea that a new Artefact is behind it. Which should surprise no-one
Ezekiel et al think they should just go into the film themselves to find the answers. Jenkins disagrees with doing something so reckless and foolish.
Of course they do it. Poor Jenkins. It’s not old age that makes him grey, it’s generations of Librarian shenanigans.
The b team don’t end up in the same film as Flynn and Eve: they end up in a terrible musical western and then into an even more terrible sci-fi film.