Emergence
The holographic Orient Express gets out of control, when it runs through Data’s program of “The Tempest”. Amazingly, Data and Geordi find a network of self-erected nodes cross-connecting ship’s functions, much like a lifeform’s neural web. They discover that characters in the train program represent various functions of the ship. The ship begins reproduction by creating a new lifeform in a cargo bay, and all this is reflected in the train. When the new lifeform needs more verteron particles and the natural sources are exhausted, Geordi launches a photon torpedo into a nebula to generate them. The new lifeform leaves the ship with unknown destination. summary by Ex Astris Scientia