Logan McKenzie is a police detective sergeant (later captain) who does things his way with his own rule book." , Logan meets Samantha Farley while she is a DEA special agent. They clash at first but finally, they work together to take a drug lord down. , Logan is back and so is Sam but now he's the captain and she's retired from the DEA and is one of his sergeants. Lakeland PD will never be the same with the two of them working as partners in the detective bureau, but changes are on the way. Logan and Sam are back for a third time and this time is going to be very different and dangerous for both of them. Someone is kidnapping and murdering women in Lakeland - appears to be a serial killer. The women are all tall and have long black hair, just like Sam. They find out a man Sam put in prison fifteen years ago is out of prison and he had vowed to kill her when he got out. Sam, Logan, FBI agents and the local police agencies work together to get this killer but each time they think they'll get him, he disappears. Both Sam and Logan have to take their families to a safe house - even there the killer finds them. As Sam and Logan work closely together, they have to address the growing feelings that are developing between them. But with Logan's loss of his wife seven years ago and Sam's divorce eleven years ago, can they overcome their losses to build a new relationship? Will they be able to work together? How many women will be killed before the killer is found? Will he get Sam or her daughters before he is caught? Will Logan's way be enough to solve this case and build a relationship? Will Logan finally go all the way?