Michael uncovers a conspiracy at Metachem, when a guard is killed on duty. Michael enlists the aid of Max and Isabel when the investigation takes an alien turn. Meanwhile, Liz has entered boarding school in Vermont and tries to start a new life, and Maria disillusioned by New York goes to visit Liz in Vermont.

Michael, Jesse and Valenti call on a discredited doctor to help the wounded Isabel. Also, Clayton Wheeler undergoes an amazing transformation and soon finds himself drawn to Liz; and Jesse quizzes Michael about Isabel's alien roots.