Experiment #528

An investigator seeking the cause of an airline disaster discovers the involvement of an organisation of time travellers from a future Earth irreparably polluted who seek to rejuvenate the human race from those about to die in the past. Based on a novel by John Varley.

Herman Umgar, a German hermit, has an ability to communicate with worms. One day the mayor of the town runs him off his property, so in revenge he plants worms in everybody's food. However, these worms are a special breed of mutant worms from the Red Tide, and when the people eat them they are transformed into giant worms themselves. These worm-people also become Herman's slaves. What will the remaining do?