Devlin “Mac” McDougal is an undercover FBI agent. Mac has been disguising himself as a drug dealer to get in with a gang called Satan’s Children. The FBI thinks that local law enforcement is mixed up in it so Mac can’t trust anyone, even his partner. He gets shot when his cover is blown and ends up hiding under Caitlyn O’Toole’s car. Lucky for Mac, Caitlyn is an ER nurse and knows how to help him. Mac is best friends and partners with Caitlyn’s brother Tom. Tom, along with his brothers Liam and Jim, have warned Mac to stay away from Caitlyn. But a guy can still look right?  Caitlyn’s brothers want her to stay away from Mac and Mac himself has told her that his not a settle down kind of guy but she still wants him. When the bad guys get Caitlyn, they’ll have to put their differences aside to save her.