The story traces the life of an aging ice hockey star who is named the tooth fairy because he knocks out teeth of his opponents. His girlfriend has two kids, the daughter just loses one of her teeth and the mother tells the story of tooth fairy. The protagonist tries to tell her the truth in a rude manner to the chagrin of the mother. The son doesn't like this guy because he is rude, and sarcastic.
The story moves on to fairyland when the player gets called to do some community service and then after some seriously boring drama and some funny scenes the movie ends with a soulful transformation of the protagonist. I definitely wouldn't pay the regular theater ticket to watch this movie....