Hortense falls for a chef who accompanies the Commodore on his return to Bellacourt Manor. Meanwhile, Frederick is subjected to a psychological evaluation to determine if he's fit for a Senate run; and Hamish tries to blackmail Chair.

There are mixed emotions in the DiLaurentis household when Charles declares he is coming home for his birthday. Mr. DiLaurentis wants to quickly get out of town to hide Ali and Jason from their brother, while Jason sees this as an opportunity to finally validate all of the early childhood memories he has of "Charlie." The PLLs are just as split with Spencer and Hanna seeing this as the best chance they have to capture Charles, while Emily and Aria want to stay as far from him as possible. Will Jason be reunited with his brother, or is this just another of "A's" traps? Meanwhile, Mona is shutting Mike out and Hanna gets an unwelcomed surprise.

The good news is the team finds a witness to a murder. The bad news is he suffers from Prosopagnosia, commonly known as facial recognition blindness, and he can't recognize the killer. The Rizzolis prepare for a visit from their scheming cousin Carlo.

Hank has an epiphany after running into his former fiancé; Evan and Paige help Elán through her labor; and Divya envisions a new future for her career and family.

A mysterious message sends Emma and Audrey in search of answers.

It’s Kirsten’s birthday and the Stitchers team is assigned to look into a disease researcher’s suicide. When the body begins showing signs that it is carrying a deadly virus, the whole lab is placed under quarantine. The team jumps to action as they search for a way out, racing against the clock as, one-by-one, they come down with symptoms of exposure.

The valley of Perris, CA hosts an early morning auction that has the buyers waking up early and watching their bids. Jarrod and Brandi start the day in high spirits, but things get tense as Dave shows up with more bluster than usual. Mary tries not to let the other buyers get her down and Ivy remains sharp and ready for a great score.

Jake Gyllenhaal (Southpaw (2015)); Josh Gad (Pixels (2015)). Also: James Bay performs.

Barry decides to stay in Abuddin and make a stand against the Caliphate. Jamal pushes the Chinese diplomat for military support. Sammy discovers that Abdul has been kidnapped by the Caliphate.

Jackson, Abraham, Mitch, Jamie and Chloe are tasked by a top intelligence agent to find the cause of the strange animal behavior around the world. When the team travels to Mississippi to investigate the wolf attack on the prison, Mitch and Abraham break off to catch one of the wolves, and Chloe, Jackson and Jamie discover that death row inmate escapee Evan Lee Hartley might somehow be involved in the attack. Also, the team meets FBI Agent Ben Shafer, who may know more about the prison fire than he’s saying.