You're watching 1977 commit completely to the idea that five solar-powered cars driven by teenagers can transform into a giant robot and that this is a normal solution to both racing competitions and supervillain attacks. The show treats solar energy like it's the most dangerous secret in the world, which means every episode is either a race that turns into a fight or a fight that turns into a race. It's absurd, it's sincere about that absurdity, and it never apologizes for either one.
Five specially engineered solar-powered vehicles represent humanity's best hope for clean energy, but their inventor knows they're a target. He places them in the hands of his son and a tight-knit group of young racers who understand what's at stake. By day, they compete in high-speed racing circuits across the country, pushing their machines to the limit. By night, they face a far deadlier threat: a shadowy criminal syndicate determined to steal the technology and weaponize it for their own purposes. When the five cars unite into a single transforming supercar, they become something far more powerful than any vehicle on the track. It's their only defense against relentless attacks from an organization willing to kill for solar power's secrets. The young drivers must balance their passion for racing against the constant danger lurking in the shadows, unsure who they can trust beyond their own circle. Part sports action, part espionage thriller, this series captures the spirit of 1970s adventure anime where ordinary teenagers become unexpected heroes. Speed, technology, and teamwork are their weapons in a race against time and their enemies.