Nicole Garland told her husband she was headed to Aruba for a girls vacation. Instead she was trying to surprise him with some surgical enhancements. When she ended up dead, Danny and Baez had to figure out why.

Meanwhile on Blue Bloods Season 4 Episode 18, Frank assigned Jamie to the off the books cold case of Michelle Lowe. Despite political pressure to let it go, Frank needed to know the truth behind her murder and knew Jamie would get the job done while keeping the investigation quiet. 

And Erin tried her hand at speed dating, only to have a disastrous time. But later one of her fellow daters turned out to be the defense attorney on her latest case. Despite a rocky beginning, when McCoy asks her to dinner, she says yes.

You can watch Blue Bloods online here at TV Fanatic. 

Watch Blue Bloods Season 4 Episode 18 Online

C. Orlando is a TV Fanatic Staff Writer. Follow her on Twitter.