Frodo Baggins and Sam Gamgee were following Gollum to go to the black gate, otherwise known as Mordor. But while he was passing through an alley out a kind of trench to get to Mordor..

All three saw a female elf on the ground, totally unconscious, barely breathing, all dirty and with some scratches and little wounds and scar, seems like this elf was in a fight given her condition and that she had a bow and arrows on her.

Frodo, Sam and Gollum were confused but Gollum approached the unconscious woman and tapped her shoulder but no reaction, all three of them didn't know what to do.. go to Mordor and abandon her or help her and maybe go to Mordor with her? The woman was you.