after a witness's location is breached?

The serial killer Gemma Hanson narrowly escaped just discovered her WITSEC location, and he's coming after her to finish what he started. That's the message Sheriff Kellan Slater personally delivers. Although Gemma and Kellan share an intense past, escaping the violence surrounding them is all that matters. Especially once Gemma realizes there is no safe place--not even protective custody...