The citizens of Edoras are still making their way to Helm's Deep. Aside from Erwin's cooking, everything seems to be going fine.
Aragorn remembers (or dreams? we're not really sure) of meeting Arwen. They kiss and stuff, it's happy.
Then he's with Elrond, who tells him to let go of Arwen. She wants to stay in Middle-earth for Aragorn when she should be heading across the sea to Valinor with the rest of her people.
He tells Arwen he won't come back for her and tries to return the Evenstar necklace. She isn't having any of it.
Back in the present, Saruman's warg riders have finally met up with the company. The men jump on horseback and prepare for battle.
Erwin wants to fight but Théoden tells her to lead the women and children to Helm's Deep, and she obliges.
Warg riders and horsemen fight. People die but it seems to generally go well for the Rohirrim.
However, Aragorn takes a tumble off a high cliff and into a fast moving river below.