Jeremy Renner, Jon Hamm, Ed Helms, and star-studded cast appear in this upcoming Warner Bros. comedy, TAG, which you wouldn’t believe is a true story… but it is.

Apparently, for one month every year, five highly competitive friends participate in a no-holds-barred game of tag… risking their jobs and relationships to take one another down. In the film, the game coincides with the wedding of the only undefeated player… and it becomes an all-out war.

Watch the hilarious trailer up top, before TAG hits theaters on June 15.