Andromache ‘Andy’ the Scythian (Charlize Theron) possesses immortality; she's so ancient that even her own age escapes her memory. Her injuries mend without a trace, though she isn't invulnerable to suffering and can still die, typically returning by dramatically rising from whatever state she was in. Andy isn't alone in this condition; other immortals share the same fate, aging up to the point of their initial death before remaining perpetually at that age. They have a heightened awareness that alerts them to new immortals, whom Andy then takes under her wing. We are shown scenes from her past, revealing how she has influenced history over the centuries, participating in numerous battles on the side she believes is morally correct, while also being forced to watch everyone close to her grow old, become ill, and pass away. The existence of Andy and others like her has attracted human attention; some observe them with the goal of capture and experimentation. If this plot sounds familiar, it's because it is – so much so that Gregory Widen, creator of the *Highlander* franchise, could potentially pursue legal action. The distinction lies in the fact that Duncan MacLeod and his contemporaries can only be killed by decapitation, whereas the immortals in *The Old Guard* simply cease healing and presumably begin aging again, after an unspecified duration that might differ between individuals – essentially, they lose their immortality as arbitrarily as they initially obtained it. This evokes a Borges short story called "The Immortal," which tells of a Roman tribune who drinks from a river granting eternal life and then spends his existence seeking the river that will allow him to die, realizing that unending life is a punishment rather than a blessing. Borges begins by referencing Francis Bacon’s Essays: “Solomon saith: There is no new thing upon the earth. So that as Plato had an imagination, that all knowledge was but remembrance; so Solomon giveth his sentence, that all novelty is but oblivion." *The Old Guard* reinforces this assertion. Ultimately, everything presented here has been done better—and more efficiently—in a randomly selected episode of *Highlander*. For a television series from the 1990s, *Highlander*'s production quality surpasses many modern films; its writing is well-considered and engaging, its characters are fully developed, and its action sequences are skillfully choreographed. When it comes to examining the advantages and disadvantages of immortality, Duncan MacLeod would be justified in telling Andy, "I've already experienced this."

Source on TMDB