Devil's pocket

"With a chip in his head and hundreds more throughout his body, sixteen-year-old Carl Freeman was turned from an orphan with impulse control issues into a super-soldier. Forced into the mercenary Phoenix Force group, he begins to fear he'll never escape. Sent to a volcanic island to fight for them, he'll compete in a combat tournament that awards teens with survival for merciless brutality. But just when all looks lost, he spies a friendly face... and possibly a way out."--