WARNING: Spoilers for The Handmaid's Tale season 5, episode 2 and The Testaments by Margaret Atwood below.After The Handmaid's Tale season 5, episode 2 reveals she is preparing to go to wives school, setting up her future story in The Testaments. One of the driving factors behind everything June has done is the rescue of her daughter Hannah, who was taken during the rise of Gilead. Despite her best efforts, Hannah has remained in Gilead with her assigned parents, Commander Mackenzie and his wife. Her future has remained uncertain as June has been faced with other challenges, including escaping Gilead to reunite with Luke and her child with Nick, Nichole.
Still, Hannah becomes increasingly important to the story of The Handmaid's Tale, taking center stage in The Testaments. In season 5, Nick reveals to June that Hannah is being prepared to be a wife at only 12 years old, but if the show follows Atwood's texts, that isn't her ultimate fate. The novel picks up with Hannah 15 years after the events of the Handmaid's Tale novel, with Hannah — known as Agnes in Gilead — growing up in a loving family. She does eventually attend school to become a wife, but when she is arranged to marry a Commander, she learns that she is actually the daughter of a Handmaid and rebukes her wife duties to become a supplicant, which, in Gilead, is an Aunt's apprentice.
During her training as an Aunt, Hannah comes into with Aunt Lydia, who turns against Gilead and will be instrumental in protecting Agnes and, eventually, Nichole. Nichole, who is being raised by adoptive parents in Canada — bringing June's fate into question — is sent into Gilead, infiltrating a pair of Pearl Girls, missionaries sent to spread the word of Gilead's teachings outside the country. They bring her back to the country where Nichole and Hannah finally meet, with Aunt Lydia revealing their true parentage. In rebuking her duties as a wife, Hannah has very few options as to her future in Gilead and, under Aunt Lydia's tutelage, becomes a critical part of Gilead's ultimate downfall.
What Happens To Hannah In The Testaments
Throughout The Testaments, Aunt Lydia secretly sends documents to Hannah detailing the crimes of high-ranking Gilead officials. With the help of Nichole, Hannah is able to escape from Gilead and smuggle the documents to Canada, where the incriminating information about Gilead is revealed and plunges the country into turmoil.
The Testaments ends similarly to Atwood's The Handmaid's Tale, with a metafictional epilogue looking at the events through a scholarly lens. Both Hannah and Nichole marry and have children, but there is never a confirmation of whether they are reunited with June. This leaves June's fate open-ended but gives her children what she always wanted: the happiest ending they could have, considering the circumstances.