Accompanied by his daughter Asari, Dr. Tatsunoko from the Tatsunoko Research Center delves into the depths of the ocean to investigate enigmatic radiation. Their exploration uncovers a colossal shell housing a mysterious globe emitting the radiation. Inside the globe, Asari discovers a compact-like object containing a message revealing the presence of a space alien named Ace from the endangered Planet of Parlum. When Ace emerges from the globe, his unique appearance and extraordinary abilities, fueled by space food, astound everyone. With the aid of a Silver Ring that harnesses instant aerial energy, Ace can soar through the skies and wield it as a powerful weapon against adversaries. Alongside allies like Asari, the robotic dog Ibo, and the Hermit Crab Reporter, Ace fearlessly confronts challenges posed by mystical robots and ruthless space invaders, showcasing his valor in the face of daunting odds.