Once More Into The Fray by abvj
I loved this fic - I can't adequately describe it without gushing and flailing so I'm shamelessly bushwhacking the authors notes: it's "Will/Alicia and Peter/Alicia but mostly just Alicia because she is a fierce woman and derserves to have tons of fic written about her."
It's a gorgeous fic, so true to the characters and show. Go read it!!