Sochi, Russia. The day before wedding Katya finds her fiancé on a date with a hot blonde, so her classmates Vika, Sveta, and Dasha decide to find Katya a new husband. They have one night only. Will they succeed?

It's been a year since Katya's wedding so now Dasha is getting ready to marry.

When their beloved school is threatened with closure should the powers that be fail to raise the proper funds, the girls scheme to steal a priceless painting and use the profits to pull St. Trinian's out of the red.

The girls of St. Trinians are on the hunt for buried treasure after discovering headmistress Miss Fritton is related to a famous pirate.