Professor Potts discovers some big old bones and puts them together in various ways until he is satisfied he has discovered a dinosaur that once ruled the earth.
While playing a harmless Halloween prank on crabby "old mother witch, " David discovers she has had a heart attack and his make-believe night of terror becomes all too real.
Mike has always been a little in awe of his self-assertive friend Rob but one day, when pushed too far, Mike realizes he will have to take a stand of his own or lose self-respect.
