The opening song changes from season to season to reflect what's happening in the story line. In the first half of Season 2 (which is set in France), part of the lyrics are in French. In the second half of Season 2 (which is mostly about preparing for war), there is a militaristic drum roll added to the opening song. During Season 3, there are tribal drums added because much of the season is set in the West Indies. In Season 4, bluegrass fiddle and banjos are added, plus some of the lyrics are sung with a Southern accent because the season is set mostly in America.