Johnny Alpha and Middenface McNulty chase escaped felon Identi Kit across Miltonia - the only planet where mutants are the majority and norms the mistrusted minority. But, when their quarry has the power to steal other mutants' identities, nothing is, as it appears to be. The stakes keep rising, as Johnny and Middenface discover that Kit's web of treachery leads right up to Miltonia's President, their old comrade the Torso From Newcastle - and their manhunt becomes a civil war.