Their parents posed as Argentinian citizens, and Vladimir Putin greeted the children in Spanish. According to the Kremlin, they did not speak Russian nor did they know who Putin was.

Why did Russian President Vladimir Putin greet the children of just-freed Russian spies in Spanish?

The reason is straight out of an episode of the hit TV spy show “The Americans.”

Among the first prisoners stepping off the plane to greet President Putin was a slender brown-haired woman grasping the hand of her young daughter. She appeared to stifle a sob as she hugged Putin. He handed her a bouquet of purple and white flowers, and another to her daughter. Putin also hugged her husband and kissed their son.

Then, over the din of the airplane, Putin could be heard greeting the children with “buenas noches” — the Spanish phrase for “good evening.”

Their parents were undercover Russian spies who posed as Argentinian citizens living in Slovenia and went by the names Ludwig Gisch and Maria Rosa Mayer Muños. They were part of Thursday’s massive prisoner swap involving several countries.