The summer break is over and the twins returned to Lindenhof. That has now changed a lot. Because Mrs Theobald had to travel, Mademoiselle Bertoux has taken the lead.

Valerie works at a travel agency and she has fallen in love with Martin,the new boss of the agency.In a cafeteria Valerie shocks with Jan throwing her coffee to his suit.They exchange their phone numbers.

The Lindenhof School is expecting a busload of proper young English ladies as exchange students. The shock is great when the students turn out to be teenage boys! But while Mademoiselle Bertoux is delighted to stage “Romeo and Juliet” with real boys, both Hanni and her sister Nanni fall for their “Romeo,” Clyde.