A wonderful "Harvard trip" allowed the blonde beauty Elle Woods (Reese Witherspoon) to obtain a law degree and find sweet love. After graduation, Elle and her handsome boyfriend Emmett (Luke Wilson) began to prepare for their grand and romantic wedding. In order to let her closest friend, the puppy Bruiser, share happiness, Elle plans to "invite" its parents to the wedding. However, at this moment, Bruiser's parents are locked up in a cosmetics company's laboratory, waiting for the judgment of fate. This incident aroused Elle's awareness of animal rights protection. For her puppy friend and for more cute little creatures, the naive Elle went to Washington alone, wanting to submit a bill to the government to protect animals, and hoped that Congress would enact laws to protect animals. Just when Elle was alone and at a loss, she was lucky to meet Sidney (Bob Newhart), an apartment caretaker who knew many upper-class people. With Sidney's enthusiastic help, Elle is moving towards her goal step by step...