Invincible Super Man Zambot 3

The planet Beal was destroyed by a mysterious force called the Gaizok, leaving only a handful of survivors who fled to Earth. These refugees settled into three families-the Jin, Kamie, and Kamikita-collectively known as the Jin Family. Knowing the Gaizok would eventually follow them, they prepared for the coming invasion, including the threat of the Gaizok’s giant mechanical beasts, the "Mecha Boosts." To fight back, they built three vehicles that combine to form the powerful Zambot 3. But defending Earth comes with its own struggles, as the people they protect often turn against them, blaming the Jin Family for attracting the Gaizok’s wrath in the first place.