1st pic of Summer Glau's Firefly reunion on Chuck

Chuck has been overflowing with guest stars its first few weeks back—Lou Ferrigno, Stone Cold Steve Austin, Dolph Lundgren and more. But the person we've been most looking forward to seeing at the Buy More has been Summer Glau, without whom it seems no sci-fi show would be complete.

So we were thrilled to see this first photo of her in uniform, side by side with her former Firefly co-star Adam Baldwin.

And you know who alerted us to this mini-reunion? None other than Nathan Fillion, aka Capt. Mal Reynolds, who just tweeted the news. (Of course! Who else could it have been?)

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