Tommy gives Kimberly a cactus as a present. Lord Zedd & Rita Repulsa steal it, and turn it into the Needlenose monster. Confused by the cactus' dissapearance, the six Ranger Teens teleport from the Youth Center's hallway to the Command Center... all except Kimberly.
She's accidentally sucked into a tear in the fabric of time, known as a Time Hole! Kim ends up in Angel Grove, circa 1880. There, she witnesses Bulk & Skull's ancestors, a pair of bandits known as One-Eyed Bulk & Doc Skullovitch, robbing a stagecoach. Tommy's ancestor, a man in a white cowboy suit on a white horse, known as the White Stranger, saves the day.
Kim ends up in Ernest's Juice Saloon, where she meets Rocky's ancestor Rocko, Adam's ancestor Abraham, Aisha's ancestor Miss Alisha, and Billy's ancestor William.
In the present, Zedd sends Goldar, Needlenose, and some Putties through the Time Hole, despite the protests of the remaining Power Rangers. The Time Hole closes, leaving our heroes hopeless to recover Kimberly. In old west Angel Grove, the evil space aliens wreck havoc on the town.