The basic film plot follows that of the book for almost the entire story with only a few differences; for example, in the book Captain Bullen is wounded by gunfire during the taking of the 'Campari,' whilst in the film, Bullen is shot dead. As the book character spent the remainder of the story incapacitated, the plot continued in much the same way without him.
The fundamental storyline adheres closely to the novel for most of the tale, with only a few notable discrepancies; for instance, in the book, Captain Bullen is shot and incapacitated during the capture of 'Campari,' whereas in the movie, he is fatally shot. As a result, the plot proceeds largely unchanged after his departure.