 The Saga of Pliocene Exile (known as the Saga of the Exiles in some markets) is a narrative surrounding the adventures of a group of late 21st and early 22nd century misfits/outcasts who travel through a one-way time-gate to Earth's Pliocene epoch, in the hopes of finding a simple utopia where they can escape the complexity and politics of the modern post-intervention intergalactic society.However, the reality the travelers find in Pliocene Europe is far removed from their utopian dreams.The time-travelers of group green arrive to discover the Pliocene is already inhabited by a dimorphic race of aliens ('exotics'), the Tanu and the Firvulag.