Somber
Seeing the twins acting seriously was a once-in a-lifetime event, and it had sent a deep shock running through Sam.
A Decepticon message had been intercepted, one that stated that there were two Autobots in their custody, and the instant the twins heard the second name they had become solemn and determined.
Lightracer, a femme who was apparently the twins' little sister and also the youngest Cybertronian still alive.
Sam had cocked a gun and joined the rescue team immediately, ignoring protests from some of the officials. He would do everything in his power to rescue Light, and Sam prayed he would never witness Skids and Mudflap somber again.