formulated to intentionally jam twenty-five key memory circuits in Computer, negating the force-field for the thirteen minutes required to fly to the sphere. During this time, Kano will 'hard-wire' the astronomical data proving Triton's destruction into Computer so that it can be the only information transmitted by Helena. Koenig hopes to persuade the Triton probe that, with the death of its home world, its function is obsolete, and to release Helena and the Moon. The plan is carried out. With the force-field down, Koenig and a squad of Security men travel to the sphere and enter it unobstructed. They disembark and, while searching the black void, Koenig is isolated and makes first-hand contact with the Tritonians. They appear as floating spheres of striated brain-tissue embedded with a single huge eye. They reveal to Koenig that their purpose is to gather information on Earthmen in preparation for a potential invasion of Triton. Furthermore, they have permitted Koenig's plan to succeed with the intent of delivering him to their domain—he, too, will be processed and become Helena's replacement after her death. By this time, Computer has cleared the affected memory cells. The force-field returns and Helena is reactivated. She transmits the data on Triton to the sphere, where Koenig forces the entities to acknowledge the demise of their home planet. Faced with the fact of a purposeless existence, the Tritonians opt to self-destruct. Koenig and company scramble back to the Eagle and take off as the sphere disintegrates around them. As Bergman and Helena watch on the big screen, their ship emerges, barely escaping the final explosion. Later, Helena is given a clean bill of health by Mathias and shows no lasting effects of her abduction. Bergman is pensive, noting that even with their immense body of knowledge, the Tritonians could not endure. He muses that "Perhaps knowledge isn't the answer." Koenig then counters: "Then what is?" Cast Starring Martin Landau — Commander John Koenig Barbara Bain — Doctor Helena Russell Also Starring Barry Morse — Professor Victor Bergman Featuring Prentis Hancock — Controller Paul Morrow Clifton Jones — David Kano Zienia Merton — Sandra Benes Anton Phillips — Doctor Bob Mathias Nick Tate — Captain Alan Carter Max Faulkner — Ted Clifford Uncredited Artists Suzanne Roquette — Tanya Michael Stevens — Man in Corridor Chai Lee — Anna Wong (removed from final cut) Prentis Hancock — Triton Probe Voice Music An