After fighting his first monster, red robot Shiny blasts into space. But when he meets new bot Thunder on his return, he realizes things are different.

Battling vicious kaiju is only for the bravest. So Thunder brings Shiny back to the base, where young inventor Alex and Colonel Creed test his skills.

Tired of being under Thunder's shadow, Shiny enlists the help of tech savvy Sarge to level up his fighting skills against the terrorizing kaiju.

Shiny reveals a clue that helps Alex begin to locate her parents. Vanessa and her alien overlord decide to accelerate their destructive aerial plans.