NGTV Guide: Friday, May 18

Nikita – 8/7c the CW – SEASON FINALE
“Homecoming” – Nikita and Michael invade Division in an attempt to capture Percy. Alex and Sean get caught in a deadly gunfire battle with the U.S. Marines and Ryan must convince the President of the United States not to destroy Division until he is sure Nikita and Michael are safely out of the building, but the President is eager to end Percy’s reign. Meanwhile, Birkhoff asks Sonya (guest star Lyndie Greenwood) for help, and Nikita corners Percy in his office, but he pulls out one final trick that may cost her the battle.

Grimm – 9/8c NBC – SEASON FINALE
“The Woman In Black” – As Nick delves deeper into his life as a Grimm, a trail of grotesque murders reignites the search for the elusive gold coins. The arrival of a mysterious woman in black (guest star Mary Elizabeth Mastrantonio) begins to get in the way of Nick and Hank’s investigation as extra precautions have to be taken to ensure their safety. Meanwhile, Nick’s ability to keep his true nature secret from Juliette comes to a tipping point.

Fairly Legal – 9/8c USA

Supernatural – 9/8c the CW – SEASON FINALE
“Survival of the Fittest” – Dean and Sam prepare for battle with Dick Roman. Dick’s in the final phase of his plan and the Winchesters must team up with Castiel, Bobby, Meg and Kevin, the prophet, to stop him. However, Dick is one of the smartest enemies they’ve ever faced so it’s a mind game to see who can keep the upper hand.

Common Law – 10/9c USA