The final high school field trip is the one where anything can happen, but the participation of the parents on the final high school field trip is the tipping point. Lvaro Castao decides to travel with his family to keep an eye on his daughter Sarita since he understands that security is preferable than the police, but his mother-in-law Raquel refuses to cooperate and joins the scheme. Lvaro Castao will turn into Sara's worst nightmare and the highlight of the trip on the idyllic beaches of San Andrés, but his seductive mother-in-law will steal the show. The last year's High School girls' trip to El Paseo 6 was cancelled due to the grandmother's good fortune.