Lois & Clark: The New Adventures of Superman (1993)

S3E21 Through a Glass, Darkly

A terrorist teams up with a researcher from another planet, unleashing turmoil that disrupts Superman's longing for stability and permanence in his life. As chaos ensues, Superman finds himself grappling with the challenges posed by this unexpected alliance, all while reflecting on his desire for a more enduring existence amidst the turmoil.