T

he new teacher, Mrs. Wentworth, teaches a class on subliminal advertising, so after Zack successfully uses it to get out of trouble with Mr. Belding, he tries to use hidden messages on a cassette music tape to get Kelly to go the Sweetheart's Dance with him and Lisa to go with Screech. But when the rest of the gang catches on, they all joins forces with the entire school including Mr. Belding to wreck revenge against Zack.

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