Space explorers do not recognize the life forms that they land amidst.; A persecutor of humanoids reads a book that states his parents were humanoids so he calls off his crusade and joins them in the subway tunnels where they have been forced to live.; Earth men are threatened with snow cover and conduct a vote whether they will invade another planet or not. When the vote is against invasion, the sunlight breaks through the cloud cover.; A bird-like alien spy who adopts human form develops a fear of birds and a psychologist attempts to get at what is behind this mental block.; Humans decode a message from space warning other aliens to beware of the human presence on Earth.