Babylon 5, designed to be a place of peace in a troubled universe, has erupted into rioting as visiting cultures clash and passions explode.  Security chief Garibaldi must use all his skills to quell the violence between races.  But the troubles escalate as terrifying nightmares plague everyone on board from Captain Sheridan to Vorlon Ambassador Kosh.  It seems as if some "force" is touching them all...Then an alien presence appears.  A long, twisting band of green light nine million miles long stretches out against the darkness of space on a collision course with Babylon 5.  Since it remains invisible to computer sensors, some are calling it an illusion, others are calling it an evil life force.  Still others are calling it God.  Now, it is up to Captain Sheridan and Garibaldi to find out, risking their lives, and perhaps their souls, to venture forth amond the stars to meet the unknown.