A strange vessel is detected and taken aboard the Bilkis. It turns out to be a space shuttle from 21st century Earth. Three male astronauts are alive inside. The crew of the Bilkis regards them as primitives, little better than Neanderthals, as they come from the time when humanity almost destroyed itself. However, Mika takes pity on them and tries to befriend them, sneaking them around the ship. But the astronauts may prove the fears about them true. They storm the bridge and take it by force!