What happens
Black Flame of the Amazon follows explorer Noise and pilot Pat Donovan, whose seaplane takes off from an Amazon river and is forced down when a canoe of children drifts into its path. Grogan, a ruthless adventurer, has the party brought ashore to a village, where he and his partner Lymie plot to get hold of a secret treasure map. Grogan wants to force the children, Jim and Jean Brady, to decipher the coded markings on the map, while their father, Jim Brady, remains stubborn. Jim and Jean are left in a hut with the map and must decide how to handle Grogan's demands. The episode ends with Jimmy hatching a plan and Grogan on his way back.
A native village on a river in the Amazon jungle, Brazil
Characters: Grogan, Lymie, Mr. Noise, Pat Donovan, Pedro, Jim Brady, Jimmy, Jean
Listen for: Grogan's plan to make the children decode the secret map, and Jimmy's plan at the end
Written from the episode itself; it never gives away the ending. Every recording is remastered for the stream: cleaned of rumble, hiss and mains hum (and the old TV whine where we found it), then levelled in two passes to steady broadcast loudness, so one show is never quieter than the next.