They call it "Gridlocking"—maglev-bike races across the Fuse’s vast solar arrays. Fast, dangerous, and very illegal. So when the #1 gridlock racer turns up dead, Klem and Ralph begin their own race to catch a killer...in a case that will force them into the dark underbellies of drug smuggling and terrorism in zero-g! Collects THE FUSE #7-12.