WXYZ Anchor Stephen Clark grabbed a sledgehammer and started swinging like Nexstar after taking over a new station. 

But, it's all good. Clark is trying to start the next ice bucket challenge and is asking people to "Smash SMA."

SMA stands for spinal muscular atrophy, a disease that his 2 year old granddaughter, Scarlet is afflicted with.

Clark wants to fin a cure for her and all the other kids that have been hit with SMA. So he is going to start hitting things and he wants you to as well.

Watch the video as he explains: