In Jump Start Adventures 4th Grade: Haunted Island, you play a student who is not in class one day. Meanwhile at School the evil substitute Mrs Grunkel turns all your classmates into monsters. A purple bat named Flap tells you about what happens and takes you to Haunted Island to help free your classmates from Mrs Grunkels spells. A magician named Madam Pom Reda guides you with your missions and tells you where to go to collect clues to help free the students. Along the way collect keys to get into Mrs Grunkels house, and solve some Language art questions from Mrs Grunkels Ghost keeper.