T'Pol and Reed lead a team on a harrowing mission into one of the mysterious metallic Spheres to obtain vital information about how the Delphic Expanse was created, as Archer and Hoshi approach the Xindi Council hoping that diplomacy can stop the launch of the superweapon aimed at Earth. Meanwhile, with Enterprise about to derail their plans to invade our universe, the transdimensional Sphere-Builders urge key members of the Xindi Council to take drastic measures to undermine the humans' peace overtures.
