Pranking the New Boy

Avery....your average teenager, has two loyal besties ,lives with a normal family and goes to a regular high school. Life is steady nothing too extraordinary.
Evan the absolute contrary ,mysterious new to town has friends but none who are so close and doesn't speak much about any family.
You would never think that those two might ever unite or take any type of interest in each other, so why in the world are they pranking each other now...?