It was only natural that a robot with as much skill at combat on a crowded road would be paired up with a human specialist in urban warfare. Spike Witwicky and Backfire make the perfect team. Together, they stalk the Decepticons in secret, through some of the earth's most crowded and confusing cities. Backfire and his human ally have much to gain - but even more to lose. Can they trust each other? More importantly - can they afford not to?