Michael and K.I.T.T. head to the quiet backwater town of White Rock for Michael to take a well deserved vacation and do a little rock climbing, but the trip isn't quite the quiet break expected, when they find that the town is being terrorised by a rowdy motorcycle gang preparing to do battle with a rival club of bikers...

Intercepting a robbery, Michael is shocked when one of the thieves commits apparent suicide, jumping out of a high-rise window. Investigating, it emerges that a con woman posing as a voodoo princess is using special earclips that submit the wearers to become zombified slaves to her commands. The woman plans to use her tranced henchmen to steal her some priceless archaeological finds, but in trying to stop the plot, Michael himself falls under the spell of one of the earclips...