Danny Phantom Episode 18 - Life Lessons Episode Title:Life Lessons.Episode Description:Danny and Valerie are forced to work together by watching a child-like flour sack for health class, but neither of them demonstrate willingness to help the other. After watching both Danny Phantom and the ghost hunter fighting, Skulker wonders which one is a more worthy prize. He handcuffs them together on his island and hunts them, holding the sack as ransom.