Centaurus is a beautiful, peaceful planet, home to many humans -- including McCoy's daughter Joanna. Massive computer malfunctions are plaguing the "Enterprise" when Kirk suddenly receives a shocking message from Starfleet Command: "Centaurus has been bombed and annihilated. Thousands are dead. Give whatever help you can." The crew risks beaming down to investigate. But Kirk is thrown into a deadly struggle between violent enemy terrorists and vengeful...