Some convicts escape, led by an assassin who is also a marquis, and they terrorize the towns they pass by demanding money and murdering.

While on a surveillance mission, El Algarrobo has a strange experience with a young lady who lives isolated in a mysterious forest.

El Algarrobo's niece is going to marry a rich young man, so they have to put on a comedy for the groom's family. El Algarrobo becomes an Indian uncle, El Estudiante falls in love with his girlfriend and Curro takes advantage of the farce to rob a jewelry auction.