Steve DuMouchel

Luke comes home after wrapping up his tour but Rayna feels conflicted about leaving the children to go out on the road again.

Rayna has cancelled the wedding, but Luke isn't going quietly. Gunnar fights for custody of Micah and Deacon gets dire news.

Juliette's pregnancy is making her stir crazy. Scarlett plans a surprise for Deacon, but it doesn't turn out as she'd hoped.

A single mother witnesses a drug dealer brutally beating up a man. Oleg asks Michael to help the woman, who is his best waitress, Cara, after she stops showing up for work.

Michael offers to help on a CIA mission for visitation privileges; Fiona is targeted by a gang leader.

The gruesome discovery of a man who has been partially eaten by a shark turns into a murder enquiry when he is found to have been shot. Later, another victim is dragged out of the ocean, and Horatio begins to wonder whether there is a sea-going serial killer on the loose.