Tremol, a lieutenant of the Interplanetary Space Patrol is entrusted with escorting a diplomatic team to Earth to establish trade relations and share technology with the Vaedra System. When the landing party fails to report in, Admiral Esrith threatens to unleash an intergalactic war unless the landing party is returned unharmed. General Yermolay, in charge of Black Projects for the U.S. Government, plans to keep the landing party a secret and unleash his own war against the alien threat. Keely McGuire, a feisty Secret Service Agent, must team up with Tremol to locate and rescue his team before the two military men annihilate the Earth and all those on board the Concordance.