The Epsilon Team (Greek: Ομάδα Έψιλον, Omadha Epsilon) is a conspiracy theory concerning a secret society consisting of an elite team of Greek engineers, academics, pilots, powerful businessmen and politicians. First coined by Ioannis Fourakis, this term was later used by Anestis Keramidas, Gerasimos Kalogerakis, Dimosthenis Liakopoulos, Kyriakos Velopoulos and a few other writers in a series of eschatological, messianic, pseudohistorical, pseudoscientific and national mysticist books, which now form a complex mythos.
Their Greek supporters like to present the "Epsilon Team" as a proof of the superiority of the Greek race and culture above all other cultures, by claiming that Ancient Greeks were of extraterrestrial, Hyperborean origins and had extremely advanced technology, now secretly discovered and studied by the "Epsilon Team", which is, if not of Greek origin, at least using "forbidden" and "top secret" Greek technology, either the result of rediscovering "ancient" technology or the work of scientists, members of the society. Also this team is supposed to fight against the so called Jewish Darkness, an eternal fight between light and darkness. A fight between two cultures actually, the Hellenic (Hellas - root(H)el = light) and the Judaic.
Some of them claim that the Epsilon team has existed in some form since the first forms of Greek civilization, and that its members included ancient philosophers, historians, scientists, and politicians like Plato, Aristotle, Pericles, Socrates, and so on.
Others don't dwell into antiquity but claim that the "contemporary" form of the Epsilon team as a secret society dates back to the post World War II period, founded as a secret society by Greek scientists working in the United States and economically backed up by people like Aristotelis Onassis and others (mostly people already deceased at the moment of "acknowledgment").
An interesting view is that of the journalist G. Palmos, who dismisses any attempts at providing a definite timeline or description by simply stating that the Epsilon Team is more of an "eternal common Greek spiritual brotherhood" than a secret society or organized company of sort and thus has no timeline or traceable structure.