Sally Jones is not only a loyal friend, she's an extraordinary individual.

In overalls or in a maharaja's turban, this unique gorilla moves among humans without speaking but understanding everything.

She and the Chief are devoted comrades who operate a cargo boat.

A job they are offered pays big bucks, but the deal ends badly, and the Chief is falsely convicted of murder. For Sally Jones this is the start of a harrowing quest for survival and to clear the Chief's name.

Powerful forces are working against her, and they will do anything to protect their secrets.