1. Metamorphosis
I am Number 4

2. The story
Eons ago 2 races came to a decision point in there history. One race preserved there planet while the other race squandered it. Because of this the race that protected its world evolved to gain incredible abilities upon maturing while the other race suffered. After a war both races came to earth and now struggle for the planet.

3. Metamorphosis
When creatures are born there priority is to grow and survive.
When creatures are adults there priority is to create more of themselves
In order to achieve this most animals go thru a dramatic transformation on he cusp of child and adult.

4. Review
I am Number 4 is an intriguing story. With a classic super man premise, an alien gains power on earth upon maturing in to an adult. However it’s plot line then differs greatly with, instead of a golden age hero, it has a small army and a secret war. This leads to a comfortable yet not cloned plotline that will continue to hold your attention.