Jack Jenkins is dying for some action.

After surviving the attack of the Iron Count, he and his superteam, the Knuckleheads, are basking in their success. Things at the University are quiet once again. Maybe too quiet.

But when a seductive cat burglar drops in on campus, Jack can’t resist pinning down her game before she pounces on someone he cares about.

On top of that: a violent foe has arrived in the city, the terrifying and brilliant Mechaharpy. Will Jack be able to stop her nefarious plans ...