""Donkey Kong Country was an entirely new DK franchise established by the British company Rare and Tim Stamper which took the Donkey Kong premise in an entirely new direction and became a showcase title to show off then-revolutionary CGI graphics.
In Donkey Kong Country, DK was the hero and he and his sidekick nephew Diddy Kong had to save his hoard of bananas from the thieving King K. Rool and his Kremling Krew. The game was an action sidescrolling title similar to the Mario games and was enormously popular for its graphics, music and gameplay.
The sequel, Diddy's Kong Quest (Super Donkey Kong 2 in Japan) involves DK being kidnapped by K. Rool, who was now a Kaptain, and getting rescued by Diddy Kong and his girlfriend Dixie Kong, in a less cheery and a more darkly-themed game.
In Dixie Kong's Double Trouble (in Japan, Super Donkey Kong 3) Donkey and Diddy both got kidnapped by K. Rool, now Baron K. Roolenstein, and Dixie and her cousin Kiddy Kong had to save them in the final game of the series for the SNES.""
Source: Wikipedia, "Donkey_Kong", available under the CC-BY-SA License.