When Sam first made his way out of the dorm, his intention was simple: protect the island from whatever had decided to invade this time. Right around the time he slipped his knife back into his jacket and started using only his abilities to fight, his intention became protecting the island from whatever had decided to invade this time while practicing using his powers. Then, right around the time his gremlin kills hit double digits, that first part went away, and all that was left was the practicing.
Sam was still more angry about what had happened to Peter than anything else, but he'd been repressing his anger lately, not wanting to scare his friends. Out here though, there was no need for repression. The gremlins were a threat and they needed to be dealt with, so there was nothing holding him back, nothing keeping him from practically tearing the gremlins apart as he made his way to Zoe and his dad's house. The more he used his powers, the more anger he got out, and by the time he'd reached the house, his head was throbbing in pain in time with his heartbeat. Still, he almost felt better than he had in a while, and that was nothing to complain about.
- From the dorm to 16 Unicorn Street, Saturday Evening