Curious how Andromache, aka Andy, lost her immortality or how she managed to get it back in The Old Guard 2? The action-packed sequel dives deeper into the franchise’s mythology, introducing new characters, powerful enemies, and game-changing revelations. With Andy fighting as a mortal and a shocking sacrifice altering everything, fans are asking: how did it all happen?
Here’s what we know about Andy’s loss of power, how she regains it, and what it means for the future of The Old Guard.

How Andromache aka Andy really lost her immortality in The Old Guard 2 explained
In The Old Guard 2, it is revealed that Andy lost her immortality due to an accidental wound inflicted by Niles.
Niles, identified as the “Last Immortal,” possesses a unique ability: her injuries can nullify another immortal’s healing factor. This unexpected effect stripped Andy of her powers, rendering her mortal throughout most of the film. According to the lore introduced in the sequel, Niles’ role as the final naturally occurring immortal includes this rare trait.
This is confirmed when Discord and Tuah target Niles for her power, which can transfer immortality to a new host if the original immortal is mortally wounded and willing to pass it on. Andy’s loss was therefore a byproduct of this mechanism, stemming from her injury during combat with Niles in the previous film.
How does Andy get her immortality back in The Old Guard 2?
Andy regains her immortality when Booker deliberately transfers his powers to her. Knowing that Niles can trigger the transfer, Booker wounds himself and finds Andy. He silently gives up his immortality, restoring Andy’s healing ability just in time for her battle with Discord.
Booker makes this choice after Tuah explains Niles’ role as a conduit for immortality. He voluntarily sacrifices his powers, fully aware that the transfer is permanent. Once the wound triggers the shift and Andy receives his abilities, Booker’s healing stops. His decision allows Andy to survive the final confrontation and resume her immortal role.
Booker’s self-sacrifice also serves as a personal resolution, as he had grown weary of eternal life and previously betrayed the group seeking an end. His final stand against Discord’s soldiers ensures Andy’s survival and sets the stage for a sequel.