Flynn is back, and he believes he may know how they can find the Library.
The Librarians show Flynn all of the tools the Clipping Book sent them to get, and it seems they may all be useful. They begin by using the story book.
Dulaque is back, and says he needs blood sacrifice. He stabs his partner. Dulaque says the passage to the Loom of Fate has been opened. He cuts the fabric in the loom, and Eve and Flynn find themselves in trouble. Flynn doesn't know who she is.
Flynn's fate seems to have changed, as he now boasts of having a record number of degrees.
Jacob shows up as the Librarian and kisses Eve. He says he has been the Librarian for ten years, and the he once watched Eve die. He says the other guy didn't take the job.
Then they find another parallel universe where Ezekiel is the Librarian. In this universe, most people are possessed. Ezekiel believes that Flynn and Eve are moving sideways through time.
In the universe where Cassandra is the Librarian, Lamia is her guardian. In each of the timelines, Eve dies. Cassandra says she will evacuate the world. Instead, Flynn begins to realize how they can fix The Loom of Fate.
Cassandra uses magic to bring all of the Librarians together with the thread, giving Eve and Flynn the chance to go back to their own time and weave the loom back together.
They run into a younger version of DuLaque -- Lancelot, played by Jerry O'Connell. Eve is stabbed.
Jenkins arrives. He is Galahad, of Arthurian legend.
Eve's blood brings back The Library, but she is fading. Flynn runs through The Library, finding a potion to heal Eve. She nearly dies, but he saves her just in time.
Flynn gives each of the Librarians a small version of the Clippings book, telling them it is time for them to go out on their own.
Cassandra says she will try a case, and is about to go off on her own. Ezekiel and Jacob decide to go along with her.
Eve thanks Jenkins for saving them.
Flynn finally asks Eve to go on a date with him, which seems like it will be a new adventure all its own.