A botanist called Klausner invents a machine which can translate the conversations of trees and plants... and what he hears gives him a nasty shock.
| Name | Type | Role | |
|---|---|---|---|
| Roald Dahl | Writer | ||
| Harry Andrews | Guest Star | ||
| James Warwick | Guest Star | ||
| Margery Mason | Guest Star | ||
| John Gorrie | Director | ||
| Roald Dahl | Director |