An Overwhelmingly Strong Enemy!! The Ringleader of the Evil Dragons

In the wake of intense fighting between Goku and Nuova Shenron, the devious Three Star Dragon, Eis, steps in and freezes Goku solid. As the sibling rivalry boils over between Eis and Nuova, Goku fights back when Eis uses Pan as a human shield! But there's another fighter resting in the shadows, waiting for the right moment to enter the battlefield.

Synopsis excerpt via Kitsu.