Emmy Award winner Alec Baldwin serves as this week's celebrity guest announcer.

Harriet Tubman provides military intel to the Union Army, Virginia Hall spies in France during World War II (and becomes the first woman in the C.I.A) and children's books' author Roald Dahl serves as a debonair British spy.

The remaining artists add their own twist to the Four Horsemen of the Apocalypse.

Brian Finch's life takes an extraordinary turn when he uses a mysterious drug, NZT, that allows him to access his full brain capacity. However, when an NZT-related murder lands Brian on the FBI's radar, he uses the drug in an attempt to stay ahead of the authorities long enough to clear his name.

After being shot, Gibbs fights for his life aboard a Navy hospital ship, while DiNozzo and Joanna travel to Shanghai to try and take down the Calling.

A military convoy is attacked in order to steal a missile that is part of a Naval exercise. Pride and the team, believing that it is perpetrated by a group of anti-American militants, make plans for a dangerous undercover operation with potentially deadly consequences.

Episode info coming soon ..

Danny and a very pregnant Mindy cannot agree on a birthing plan, but these OB-GYNs are reminded that some things are totally out of their control.

Anne Hathaway (The Intern (2015)); Anthony Anderson (Black-ish (2014)). Also: A Great Big World performs.

The blind auditions continue for a second night as Gwen Stefani, Adam Levine, Blake Shelton, and Pharrell Williams fight for the artists who could go all the way.