After defending a cargo convoy from an Outrider attack and delivering it safely to the Planet Yuma, the Star Sheriffs are summoned to Cavalry Command Headquarters, the center for operations all over the universe. The leader of the Cavalry Commanders, General Whitehawk, greets them, gives them a tour of the facility and asks them to demonstrate their various skills to the Star Sheriffs cadets. The most promising cadet, Jesse Blue, instantly falls in love with April. During one of the demonstrations, the Star Sheriffs are called away to defend a cavalry ground transport that has been ambushed. Jesse Blue, defying orders, goes after the Star Sheriffs and arrives just in time to see April being lassoed. But, Saber Rider gets there first and helps April escape from her wolf-faced captor, leaving Jesse unhappy and jealous of Saber Rider.