Most of Earth's defense squadron becomes incapacitated after ingesting poisoned food discs. Buck travels to the planet of the food's origin, Vistula, with Wilma and flight instructor Duke Danton, an old boyfriend of Wilma's. On the planet, they trace the plot to a man named Kaleel who has been selling slaves to the planet's governor and secretly building an attack fleet. With so few fighter pilots, Earth's defense force is now outnumbered 10-to-1. Buck must rescue Wilma from Kaleel's mountain fortress and destroy the fleet before they can reach Earth. This episode was initially aired as a two hour special.

Most of Earth's defense squadron becomes incapacitated after ingesting poisoned food discs. Buck travels to the planet of the food's origin, Vistula, with Wilma and flight instructor Duke Danton (Groh), an old boyfriend of Wilma's. On the planet, they trace the plot to a man named Kaleel (Palance) who has been selling slaves to the planet's governor (McDowall) and secretly building an attack fleet. With so few fighter pilots, Earth's defense force is now outnumbered 10-to-1. Buck must rescue Wilma from Kaleel's mountain fortress and destroy the fleet before they can reach Earth. This episode was initially aired as

After a Defense Directorate agent kills a member of a group of interstellar assassins, they plot to take their revenge on the city of New Chicago. Buck masquerades as an assassin and joins the group, but is soon uncovered. He must now, not only escape from the assassins, but also stop them from detonating New Chicago's matter/antimatter energy plant.

Hieronymous Fox, an 11-year-old child genius from the 20th Century is kidnapped for ransom by the sinister Roderick Zale. The boy is the President of the planet Genesia and his bodyguard fears that he will be killed because they cannot meet the ransom demand. Buck, Wilma, and the bodyguard then make separate attempts to rescue the boy.

To discover the secret behind a terrifying riddle presented to him, Buck subjects himself to a mind probe in an attempt to find out who is responsible for the mysterious objects being transported into the Defense Directorate's building.

Buck is invited to be the special guest of the 2492 Olympics. Shortly after arriving on the planet where they are being held, he is drawn into a game of political intrigue as an athlete from the planet Lozira attempts to defect to Earth.