Juan Sin Fiedo (Javier Solis), Juan Colorado (Antonio Aguilar), Juan Pistolas (Luis Aguilar) and Juan Charrasqueado join their destinies during the Mexican Revolution.
After a young man is killed in an unexplored subterranean cavern and his girlfriend driven mad by something she saw there, a track found at the scene cannot be identified with any known animal and thus a scientific expedition is launched to find out just what it is that is living there.
A young man eagerly prepares for triumph as a boxer in a neighborhood gym with the firm intention of escaping poverty to marry his girlfriend, who sings in a nightclub.
Fiero is hired to assassinate the newly-elected civilian president of San Pedro. His employers are a group of generals, threatened by the liberal sympathies of the new president-elect. The generals, having killed Fiero's father years ago, trick Fiero into thinking he is working for the leftist...
A story of teenage love set against the backdrop of the 60's, filmed on the picturesque tropical beaches of Puerto Rico. A classic Latino love story, asking the timeless question -- whether it is better to have loved and lost than to never have loved at all.
Young doctor Jaime attends his father's clinic where Diana, a singer, is carried by emergency. After operating it, Jaime falls in love Diana and decides to accompany her throw artistic caravan, where replaced a singer and quarrels by jealousy with Javier, a womanizer trying to conquer Diana.
A sailor decides to marry his girlfriend, but her boss is in love with her and orders a beating for her boyfriend. Once the sailor regains consciousness, he is accused of murder and must flee. Once he gets to the port, however, he is beaten again, losing his memory as a consequence.