Pippi sends a request to her father, Captain Longstocking, on a remote island in the South Pacific, for some unusual flower seeds so she may enter the town's annual flower show. The Captain's letter, explaining that the seeds are for cannibal flowers, is somehow lost as Pippi manages to grow the most exotic species of flowers ever seen. Not equating the loss of many small items to the flower, Pippi enters the show, and chaos prevails as the cannibal flowers eat the other plant entries. Mrs. Prysellious silly accusation that the plants ate her flowers is dismissed until she is proven correct.