Tess came to Earth with the other alien-human hybrids, Max Evans, Isabel Evans and Michael Guerin, but left her pod after they left theirs. They are clones of dead royalty, known as the Royal Four, from the planet Antar. She was raised by another alien, Nasedo, who had apparently been sent to Earth to protect them. However, he had made a deal with Kivar (the enemy of the Royal Four) 40 years before: return home with Max's son (with Tess' help) and deliver Max, Michael and Isabel to Kivar, who would have killed them. Eventually, Tess is the one who completes part of the deal, as Nasedo dies .Tess appears to be obsessed with Max and fulfilling her destiny by being with him. However, at the end of season two, her true goal and purpose is revealed: to return to Antar pregnant with Max's child. After she gets pregnant the royals prepare to leave earth and return home because Tess tricks max into thinking that the baby can't survive in Earth's atmosphere, but right before they leave Liz discovers that Tess is the one who killed Alex. Since she is pregnant, Max allows her to go, leaving himself, Isabel and Michael on Earth.When she returns a few months later she has the baby with her. The F.B.I are after them so she goes to Max .She tells him that the baby's name is Zan after Max's name on Antar. She has a reluctant Liz drive her to the base, where she apologizes for the pain she has caused, then steps out of the car, melts open the gate and blows up the F.B.I base and herself to protect her son and the royals. Show less «