Marvel’s Agents of S.H.I.E.L.D. (9 p.m., ABC) – In the two-hour finale, S.H.I.E.L.D. must survive a fight that blurs the lines between friend and enemy. Renewed.
Also on tonight . . .
NCIS (8 p.m., CBS) – After a deadly bombing overseas, the team pursues a global terrorist in the Season 12 finale. Of course this is renewed.
NCIS: New Orleans (9 p.m., CBS) – The freshman season ends with Pride having suspicions about a mole, and new intelligence indicating a breach at the ports. This will also return.
American Idol (9 p.m., Fox) – A finalist is sent home and the final two perform to win the title. The winner is revealed in tomorrow night’s finale.
Undateable (9:30 p.m., NBC) – Season 2 ends with Candace dealing with her feelings for Josh, and Shelly urging Brett to come out to his friends in London. Renewed.
Chicago Fire (10 p.m., NBC) – In the Season 3 finale, Cruz and Boden are in danger fighting an out-of-control warehouse fire. This will be back.
Frontline: The Trouble with Chicken (10 p.m., UNC-TV) – A report on the spread of pathogens in chicken and why the food safety system hasn’t stopped the threat.