Frodo isn't doing so hot… but luckily Arwen, an elf, comes to the rescue.
Strider worries about her riding alone with the Nazgûl afoot, but she insists she take Frodo to Rivendell as she is the faster rider.
She takes off but it's not long before the Nazgûl are hot on her trail. She outruns and outmaneuvers them until she reaches a river, before which they halt.
After some deliberation they draw their swords and try to cross it (it's not very deep).
But just as they do, Arwen calls forth a raging torrent of water horses, which sweep down the river and drown the Nazgûl.
Frodo isn't getting any better. Arwen holds him as the screen fades to white and Elrond's face briefly appears, saying something in Elvish.