In the not-too-distant future, Earth is home to various alien races. Thus, to keep the peace, an interstellar law enforcement agency known as Space Patrol Delta, or SPD, has established an academy on the planet. Three young members of its B-Squad cadets, Sky, Syd, and Bridge, each with genetic abilities and a desire to become a Power Ranger like those on the A-Squad, are assigned the task of arresting a pair of "Robin Hood"-like teens, Jack and Z, who turn out to also have genetic powers! As Troobian Emperor Gruumm, SPD Commander Anubis "Doggie" Cruger's old enemy, plots to bring his armies to Earth, the struggle between the B-Squad and the pair of thieves ends up interrupted by the intervention of Troobian cyborg soldiers, called Krybots! (thetvdb.com)