The spotlight's on Parchís, a record company-created Spanish boy/girl band that had unprecedented success with Top 10 songs and hit films in the '80s.

A school closes due to heavy debt which brings the children into action by doing naughty deeds so as to persuade the real estate agency to reopen the school, and since this didn't work, they kidnap the school's owner in order to be heard.

This time the brave children from Parchis music band are facing a crazy professor who invented the invisibility formula.