Taking place 10 years after the Go-Onger fought the Gaiark, unprecedented peace has come to the Human World thanks to The Minister of Defense Noizumi's Isolation Barrier. But because of this, it severed the connections between the Go-Ongers and the Engines. Plus, due to the Sentai Activity Ban Law, the Go-Ongers are labelled as terrorists! Amidst that, a mysterious young boy named Souji appears to them with BeaRV's Engine Cast. Sosuke / Go-On Red and the rest save him as he was being pursued by the special police. For some reason, one standing in their way is Saki / Go-On Yellow, who parted ways with the Go-Ongers and has become part of the governments public relations office. The major incident will drag the world in and how will it involve the fate of the Go-Ongers?!
The story begins when Geki Red battles Nunchaku Banki after returning from his trip around the world for Natsume's birthday, with Geki Yellow and Geki Blue arriving to provide backup. After sending the Gekirangers into another dimension, the Go-ongers arrive before the Savage Machine Beast departs after his quarry. After clearing a misunderstanding with Geki Violet and Geki Chopper, the two bring them to SCRTC to see Master Xia Fu, with Hant revealing he met Miki at one of his past jobs at the Kyoryuya Curry Shop.
A year after defeating Yogoshimacritein, the Go-ongers head to the wild western realm of Gunman World (ガンマンワールド Ganman Wārudo?) to defeat Gaiark's Pollution President Batcheed (害統領バッチード Gaitōryō Batchīdo?) in a final confrontation. However, after defeating Engine-oh G9, Batcheed opens up a dimensional rift that sucks the Go-ongers and Engines to other Braneworlds. Soon after, while finding themselves fighting Ugatz, the Shinkengers encounter Go-on Red as he helps takes out the Ugatz on his own, much to the Shinkengers' shock.
The Go-ongers intercept the Recycle Barbaric Machine Beast Army in their Engines, managing to scrap the 13. However, trio of mysterious warriors appear and their actions result with the Go-ongers losing the primary Engine Casts while being sucked into the Braneworld known as Samurai World (サムライワールド Samurai Wārudo?), a dimension similar to Edo Japan where power is essential.
The Gaiark Pollution Ministers begin setting up their plan break the dimensional barriers that separate the Braneworlds in order to create their Gaiark haven, setting up the opening sequences for the actual movie. However, while the Go-ongers are trapped in Samurai World, the Ministers attempt to take advantage of the event by subduing Bomper, who battles them personally when they attempt to set a trap for the Go-ongers as they return to their dimension.
Engine Sentai Go-onger is the title of Toei Company's thirty-second Super Sentai series of Japanese tokusatsu television series. It premiered on February 17, 2008, a week following the finale of Juken Sentai Gekiranger, and ended on February 8, 2009. It aired as part of TV Asahi's 2008 Super Hero Time block alongside Kamen Rider Kiva. Its footage was used for the American series Power Rangers RPM and was dubbed into Korean for Power Rangers Engine Force. The catchphrase for the series is "Rushing by at full-throttle mach speed, our slogan is 'go on!'".