A chemical engineer, who recently moved to town, struggles to find a way to kill a deadly new variant of Cryptosporidium that has infiltrated the town's water supply, causing people who drink it to die of thirst.
Adam Arkin
as Bob Miller
Joely Fisher
as Susan Miller
Giancarlo Esposito
as Dr. Lawrence Carver
Ken Jenkins
as Lou Wolford
Phyllis Lyons
as Allison
Michael Cudlitz
as Andy
Jimmy Galeota
as Bobby Jr.
Casey Biggs
as Mayor Harold Warren
Viola Kates Stimpson
as Mrs. Bell
Robin Dearden
as Dr. Kennedy
Nancy Bell
as Mary Devane
Paul Linke
as Governor
