
S01E01 Earth Engine Open Fire
One night right before summer vacation, Daichi Manatsu, a second-year in high school, sees a weird round rainbow floating in the sky above Seed Island (Shuushi/Tane Island) and ventures there alone. He has seen this...
At last the Midsummer's Knights reach the Planetary Gears mothership, Auberon. The enemies attempt to halt their advance, but soon after, Puck appears and takes control of Auberon's systems, betraying the Planetary Gears and declaring his intention to take over the entire galaxy.
High-school student Daichi Manatsu works for the Globe organization to pilot a giant robot called the Earth Engine Impacter to protect the Earth from the invading alien force known as the "Kill-T-Gang", from the planet Uranus.