In 1983, a group of High School students in a day of detention must run for their lives when a teacher in a wheel chair turns out to be an ex black ops soldier having a murderous flashback.
In 2001, three teenagers from the outskirts of Buenos Aires all fall in love with Diego. Natalia has always had the most chemistry with him, but when it seems inevitable that their friendship will turn into something more, the older and more experienced Silvia appears and soon captures Diego’s attention.