At night, a serene forest surrounded a tranquil lake where a spaceship landed. A group disembarked from the spaceship and abducted Professor Katou, the head of space engineering, and his family. Unbeknownst to them, Yuuji, the professor's son and a runaway footballer, was playing a game and oblivious to what was transpiring. Meanwhile, four psychic trainees- Mark, Dickey, Franco, and Yuri- were watching Yuuji. They believed the previous night's events were an alien invasion and decided to use their psychic abilities to activate the transforming robot Baratack to save Yuuji. To activate Baratack, all five, including Yuuji, had to unite their powers by chanting "Pentagoras Unite!" The robot appeared, and Yuuji suddenly became filled with a fierce desire to defeat the Golteus reptile army.