Infection direction

While investigating an accident site, Nick (David Giuntoli) comes upon a bizarre and gruesome disease that is spreading quickly. A romantic day out for Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) takes a dangerous turn when they encounter an infected creature that is out for blood. Meanwhile, Captain Renard (Sasha Roiz) gets a tip about a dangerous foreign fugitive who’s made his way to Portland. Russell Hornsby, Bitsie Tulloch and Reggie Lee also star.

GRIMM

Monday, 10 p.m., NBC

Mob hit, Israeli-style

A homicide case involving the Israeli mob and a self-proclaimed “intuitive life strategist” (Michael Weatherly of “NCIS”) leads Major Crimes, led by Capt. Sharon Raydor (Mary McDonnell), to partner with the FBI. Provenza (G.W. Bailey) opens up to a suspect in a moment of vulnerability. And Rusty’s first day of school is a disaster.

MAJOR CRIMES

Monday, 9 p.m., TNT

Death on campus

Moretti (Rachael Leigh Cook, left)and Pierce (Eric McCormack) are called upon to solve a crime in their own backyard when a college student is killed in her dorm room. Pierce is forced into the uncomfortable situation of interacting on a personal level with more than one of his students, which forces him to confront difficult truths about his own past. The case comes just as Moretti is beginning to re-evaluate her relationship with Dr. Hathaway (guest star Jamie Bamber).

PERCEPTION

Monday, 10 p.m., TNT

Goodbye, Walter, for now

This season on “Breaking Bad” began with a flash-forward, with Walter (Bryan Cranston, left) celebrating his 52nd birthday in a diner, alone. Since then, we’ve seen the further dissolution of Walter’s marriage to Skyler (Anna Gunn) as he runs his meth-producing empire. Meanwhile, Walt’s brother-in-law Hank Schrader (Dean Norris) is closing the circle around “Heisenberg.” Walter White’s saga will end next summer.

BREAKING BAD

Today, 10 p.m., AMC

Children, beware

When a violent child abductor escapes from an emergency hospital visit, the officers of 15 Division try to track him down before he attacks somebody. After the desperate man snatches another girl, Andy (Missy Peregrym) and Swarek (Ben Bass) find themselves in a deadly standoff to save the terrified victim, resulting in a devastating emotional confrontation — and a serious choice for McNally. Meanwhile, Chris’ (Travis Milne) family obligations have him contemplating a transfer, and Traci (Enuka Okama) and Gail (Charlotte Sullivan) each face monumental decisions regarding their respective careers.

ROOKIE BLUE

Thursday, 10 p.m., ABC

Kill and be killed again

Nick Carleton (Tom Cavanagh) is a widowed father of three who is coping with the loss of his beloved wife, who was murdered. His eldest child, Alex (Tess Atkins), takes on the role of mother for her two younger siblings and lends a hand to her dad. With no leads and the case growing cold, the police have no choice but to close their investigation. Not ready to give up, police detective Joseph Moran (Boris Kodjoe) takes an unorthodox approach to try to find the killer by enlisting Alex’s assistance, which may put her in harm’s way. Reluctant to help at first, Alex begins to search for clues and anything out of the ordinary that could help solve her mother’s murder. But what she slowly begins to unearth is something more shocking than anything she could have ever imagined.

A KILLER AMONG US

Saturday, 8 p.m., Lifetime