Adonis Johnson is the son of Apollo Creed, former heavyweight champion of the world and the man Rocky Balboa lost to in his first title fight. Apollo Creed died before Johnson was born, so he never knew his father. Johnson is also a fighter and is 15-0, though in unofficial fights in Mexico. Working in an office he decides to fight full time. He leaves Los Angeles and moves to Philadelphia, hoping to get Rocky Balboa as his trainer. Eventually they team up, and slowly Johnson's career starts to take shape. Meanwhile, the light heavyweight champion of the world, Englishman Ricky Conlan, is looking for someone to fight...—grantss