Giant robot action that doesn't pretend to be anything more than pure spectacle, and it's better for it. The color-coded team dynamic actually works because the show trusts you to keep up with who does what without explaining it to death. Five pilots saving the solar system one episode at a time is the entire appeal, and it delivers that specific high consistently.

Humanity has spread across the solar system, establishing colonies on planets near and far. The Earth Federation Government keeps order from the center, but many settlers resent its reach, and relations between the capital and the colonies grow tense. That uneasy peace is broken when a non-human race called Deathcula invades, attacking the colonies unprovoked and killing many colonists. Earth's forces soon prove no match for the invaders' superior technology. To give humanity a fighting chance, Dr. Charles Louvre builds the Bismarck, a starship that can transform. Operating it takes a team of skilled specialists, so four people join forces and take on the job of shielding the outer colonies from further Deathcula raids. Expect mecha action throughout.