Professor Benjamin Tibbetts, a representative of the Teaching & Welfare Institution for the Reformation of Pagans (otherwise known as T.W.I.R.P for short), is dedicated to spreading education amongst the natives of colonial Africa. Professor Tibbetts is the uncle of Lt. Tibbetts, known as "Bones", so the Professor is referred to as "Old Bones". As he arrives (still trying to learn the native language via recordings), Professor Tibbetts is tricked into sneaking a
gin still into the country by Prince M'Bapi, half-brother of Bosambo, chief of the Ochori tribe. The steamer that brings him takes Commissioner Sanders on leave, with Captain Hamilton taking over his duties. Later, Tibbetts makes his way to Kombooli High, where his students wear
Eton collars alongside their native garb. Tibbetts dons a mortarboard but wears safari shorts under his gown owing to the heat. When Hamilton falls ill with a dose of
malaria, Tibbetts is forced to take over his duties, which include collecting the taxes. Travelling upriver by canoe, he finds Sanders'
paddlesteamer the
Zaire, operated by Harbottle and Albert. M'Bapi leads a revolt against Bosambo, and the threesome rescue a baby from death by
sacrifice. ==Cast==