Choujuushin Gravion Zwei

Gravion's use of its ultimate attack temporarily halted the Zeravire threat, but when it resurfaces unexpectedly, Earth Gult and its powerful robot Gravion are once again required to defend the planet. Meanwhile, the EFA is developing its own weapon, the Grand Trooper, to counter the Zeravire. As both groups work to stop the Zeravire, they must also safeguard their future, face their past, and uncover the secrets surrounding the Zeravire.