An eccentric, trigger-happy captain and a level-headed commander vie for control of the Starship Gemini, but are forced to mix their two very divided crews when they encounter a space barge full of militarised waste.They say it takes two to tango, but when facing this planet-destroying vessel, and the rumour of an ancient, hidden foe in the Umbra, it takes the military might of Captain Skip Sutridge and the scientific genius of Commander Maggie Antwa to be in with a fighting chance.Some say the stars are infinite, but the potential to defy cosmic threats is greater still when divisions are set aside for a greater good. That's a lesson that isn't easily learned by these space-faring twins, but it's not a lesson that will go to waste.