Ghosts | 8:30pm | CBS

Season finale: Sam and Jay host a big party for the launch of Sam and Isaac’s vampire book.

Chicago Med | 8pm | NBC

The hospital faces a staffing crisis as the nurses stage a sick-out. Archer and Frost bet on who can discharge their patients first. Charles’ distrust of a patient complicates his treatment.

The Rookie | 9pm | ABC

The team helps Skip Tracer Randy when his new love interest is kidnapped. Meanwhile, Angela and Nyla enlist their moms to help catch a con artist, and Wesley is threatened to drop a case.

NCIS | 9pm | CBS

Season finale: As NCIS investigates a dangerous connection between the Nexus cartel and Parker’s longtime nemesis, mob boss Carla Marino, the team uncovers a high-stakes plot involving stolen nuclear material. With time running out, Parker is forced into an uneasy alliance that could determine the fate of the operation – and his own future.

The Equalizer | 10pm | CBS

Series finale: While on a romantic getaway, McCall and Dante are abruptly ambushed by Salazar and his army. Meanwhile, Aunt Vi finally decides to take the next step in her relationship with Captain Curtis, and Dee meets with her favorite author who may be able to help her get into her dream university.

SWAT | 9pm | CBS

After an explosive accident at a fruit-packing facility staffed by prison workers, six inmates escape and scatter across the city. Tasked with chasing down the fugitives, Hondo and 20-Squad discover that the worksite explosion was no accident, and that the escapees are working together to carry out a high-stakes robbery. Also, Commander Hicks packs up […]

Ghosts | 8:30pm | CBS

Sam and Jay’s relationship is tested when Kyle (Ben Feldman), a handsome living who shares Sam’s ability to see ghosts, arrives at Woodstone B&B.

The Masked Singer | 8pm | Fox

It’s the Semi Finals on The Masked Singer and the final four are ready to make some hands clap with their superstar rendition of “HandClap!” The four semi-finalists are ready to battle it out ahead of next week’s blockbuster season finale. Tonight, the finalists will go head-to-head to get one step closer to the prestigious […]

NCIS: Origins | 10pm | CBS

Season finale: When the murder of Pedro Hernandez is unearthed, Gibbs (Austin Stowell) faces a reckoning. But when he needs his team most, the loyalty of one is brought into question.

Grosse Pointe Garden Society | 8pm | NBC

Alice welcomes a new addition to the family to snap Doug out of his funk. Catherine is torn as she must help sell her childhood home. Birdie receives surprising news that changes everything. Brett teams up with Melissa to care for their sick kids.

Ghosts | 8:30pm | CBS

When Sam and Jay host a fundraiser for the mayor to earn a favor for Jay’s restaurant, they learn of his bizarre connection to one of Woodstone’s ghosts.

Chicago Med | 8pm | NBC

Maggie and Goodwin’s friendship is tested as tensions rise during the nurses union’s negotiations with the hospital. Ripley and Archer treat a skateboarder struck by an emergency vehicle. Frost helps a young boy abandoned by his mother.

St. Denis Medical | 8pm | NBC

At the annual fundraiser, Alex and her husband, Tim, try to have a wild, kid-free night. Ron and Joyce butt heads over hosting duties. Bruce sets out to win this year’s “Dancing with the Caregivers” competition.

NCIS | 9pm | CBS

When a trio of combat vets are found murdered in a D.C. motel room, NCIS tracks down a suspect who refuses to talk to anyone but Sam Hanna (LL COOL J).

Watson | 9pm | CBS

Watson is thrown into a detective case when he is unsure whether the patient he is treating for one of the most rare ailments in the world, alien hand syndrome, is guilty of pushing his brother in front of a bus to his death.