It's just another day at the beach until beautiful co-ed Kim finds out she's inherited her late grandfather's drive-in theatre! The problem is if she doesn't come up with $25,000 by the end of the week, greedy land developer J.B. Winston will turn the property into a shopping mall! Kim is determined to save the drive-in with a little help from her sexy sorority sisters and the drive-in's misfit employees. Kim and her crew prepare for the party of the year at the Grand Opening of the "BIKINI DRIVE-IN". Winston and his henchmen try to sabotage the party, but to no avail. The party is on to save the theatre - complete with B-movies, popcorn, a screen-queen in the flesh and, of course, a new dress code - BIKINIS!