Torres' partner vanishes while on a stakeout, and the subsequent investigation unviels new evidence in a decade-old murder case; a new opporunity is presented to Ducky during one of his guest lectures.
When the body of a navy intel officer is found, evidence points to a team of SEALs who are about to depart on a hostage rescue mission.
The latest move by "A" creates dire consequences for Emily; a parrot's ability for mimicry sheds light on Alison's last days; Aria learns self-defense; Toby reveals a sad secret to Spencer; Hanna makes a shocking discovery about her mother.
Louis plans a romantic evening with Jessica for their wedding anniversary; Eddie buys a hot dog-shaped waterslide.
After young women are abducted, their social media pages continue to be updated. Trish's sister and Ryan's former psych patient dies.