When John is released from a psychiatric center where he has been hospitalized for a long time, he decides to move into the house of his dead mother, whose inheritance is in dispute.
Los desafíos presents three separate stories that are linked by an American presence in Spain in the 1960s, with Dean Selmier playing the role of the American male in all three.
The widow Alexandra and her schoolgirl daughter Sandra live together in a luxurious villa in Spain. When Fernando, an old love of Alexandra's, appears in town the two rekindle their love affair until Alexandra finds that he is being paid to be the companion of a rich older woman
