From Starz:
COUNTERPART IS AN ESPIONAGE SERIES ABOUT A MYSTERIOUS WORLD HIDDEN BENEATH THE SURFACE OF OUR EVERYDAY EXISTENCE…
HOWARD SILK (J.K. SIMMONS) IS A LOWLY COG IN THE BUREAUCRATIC MACHINERY OF A BERLIN-BASED UNITED NATIONS SPY AGENCY. WHEN HOWARD DISCOVERS THAT HIS ORGANIZATION SAFEGUARDS THE SECRET OF A CROSSING INTO A PARALLEL DIMENSION, HE IS THRUST INTO A SHADOW WORLD OF INTRIGUE, DANGER, AND DOUBLE CROSS… WHERE THE ONLY MAN HE CAN TRUST IS HIS NEAR-IDENTICAL COUNTERPART FROM THIS PARALLEL WORLD.
THE SHOW EXPLORES THEMES OF IDENTITY, FATE AND LOST LOVE, POSING THE ETERNAL QUESTION, “WHAT IF OUR LIVES COULD HAVE BEEN DIFFERENT?”