The GSA is preparing to launch Terra Venture, a space colony on a mission to find a new world. However, a man named Leo also wants to travel aboard Terra Venture but has been denied a passport, and so he secretly climbs aboard a plane and ends up on a last-minute training session with some Terra Venture fighters. Here he meets Kendrix, Kai, and surprisingly, Leo’s brother Mike. On the planet Mironoi, a villain Furio (working for a creature named Scorpius) is trying to steal the Quasar Sabers, five great swords with immense power put in rock 3000 years ago waiting for the chosen five to take them and protect Earth. Maya, a local of Mirinoi, is trying to escape the Sting Wingers and, she ends up going through a portal and meets Mike, Leo, Kai, and Kendrix. Here she asks them for help. Mike and Kendrix go back with Maya to see help her. After being told not to come and to stay with Kai, Leo runs in after them to see what the other side of the portal has to offer. Kai felt guilty about leaving his teammates behind and decides to go after them aboard the Astro Megaship, which is now a museum. The ship’s mechanic Damon, along with Alpha 6, doesn’t think the ship will fly as it has been out of action for so long. But, Damon lends a helping hand, and the Astro Megaship is flying once again. While in deep space, they find another wormhole and go through it. Meanwhile, Leo has caught up with Mike, Maya, and Kendrix and later meet up with Kai and Damon. They try to help Maya’s people fight off Furio and the Sting Wingers. During the fight with Scorpius, Mike takes a Quaser Saber out of the rock, which then prompts Maya, Kai, Kendrix, and Damon to do the same, showing that they are the chosen ones. Enraged that he cannot have the Quaser Sabers, Furio turns the people of Mironoi to stone. Mike, Leo, Kai, Damon, Maya, and Kendrix escape, but Furio creates a massive crevice, leaving Mike hanging on the wall. Leo comes to help but only manages to save the Quasar Saber. With Mike gone, the five heroes morph in Power Rangers and battle Furio and the Sting Wingers. The Megaship escapes just as Mirinoi turns to stone, and takes the new Rangers back to Terra Venture, which sets off on its long journey. Scorpius, however, follows the Rangers through the portal and swears revenge on them and Terra Venture.