Julián, a middle-aged single doctor, is reunited with Pablo, a childhood friend who has just married Elena, a beautiful young woman.
Set in one-day, three people embark together on a car trip from Madrid to Almeria. Antonio (Cebrián) is a successful industrialist, however he is dismayed that his personal life does not reflect his glittering career. He is insecure about his faltering marriage to Teresa (Chaplin), whom he believes is having an affair with his best friend, Antonio (Galiardo).
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.
