PIC! Summer Glau In Chuck

It’s kinda like a mini- Firefly reunion

Here’s the first pic of Summer Glau as the Greta-of-the-week* in an upcoming episode of episode of Chuck ’s fourth season, alongside old Firefly buddy Adam Baldwin. And guess who alerted the world to the pic? Nathan Fillion on his Twitter feed .

(*That phrase will make sense if you’ve been watching the show…)