The Umbra's forces are beginning to spread across time and space. Its Horror-Star fleets begin to sweep across every continuum in search of Gina's secret Time-War base: Oblivion. Then one of the planetary fortresses escorting a Horror-Star strays off course and stumbles into detection range-the jig is up! But not if Brianna and her Yewmato battloid defense treants have a say in it!