This mission is given by Gay Tony.
You meet Gay Tony who tells you that Gracie has been kidnapped by some Irish goons. Her father believes that Gay Tony is to blame for this so Tony insists that they go look for her. The go the Helipad and use the Ancellotti's helicopter to look for her. Gay Tony tells the location of the last known location of the kidnapper and you have to follow him to her location. You find out where she is kept and Gay Tony tells Don Ancellotti her location, who sends out thugs to get her back at the start of She's a Keeper.