Melissa McCarthy, Kaitlin Olson, Sandra Bullock, Michael Rapaport
The story begins when egotistical, ambitious FBI agent Sarah Ashburn (Bullock) is promised consideration for a big promotion if she can bring down a drug lord setting up shop in Boston, she's forced to team with loud-mouthed local cop Shannon Mullins (McCarthy). The two hate each other at first sight, but as they dig deeper into the mysterious identity of their prey, they forge an abiding respect and friendship..