Lab Technician Wanda Carter of the Perimeter Patrol service observes a beam of pure white light from the Danar planetoid. Shocked, she reports her findings to her co-worker, Arnold Brill. She then goes with Brill to report to Commandant Luther Mynot. Much to the chagril of Brill, who is in love with Wanda, Centurion Mynot calls on Captain Martin Hawkins. Brill knows Wanda has an attraction to Hawkins and is jealous. The Perimeter Patrol ship lands on Danar. In their investigations, Lieutenant Groll Mynot discovers a cave, reporting the finding back to Hawkins by radio.