Lily and her dad adopt a dog! At first, he is a bit clumsy but very lovable. Then some mysterious alien goo lands on JJ's head during a thunderstorm and he is suddenly really, really, incredibly smart! And he can talk! Lily and JJ head off to school to wow all of her friends with JJ's amazing new skills! But then a T-Rex egg goes missing and JJ is accused of eating it! Can Lily and JJ solve the mystery?
