Just as Oliver starts to get things in order, Black Siren launches another attack on the citizens of Star City.

Sam gets confronted.

After heroically saving a mother and newborn baby from a rooftop fire, Kidd receives surprising news when she discovers she is being transferred out of the firehouse. Severide and Casey believe something is off about the turn of events, prompting them to investigate the situation. Otis and Herrmann discuss the possibilities of taking over a rundown bar and Dawson's frustration with her father, Ramon, reaches a boiling point.

With Professor Pyg striking fear throughout Gotham, Gordon and Bullock head into the Narrows to look for clues. Bruce Wayne meets a former friend, Grace, who convinces him to come along for a night out with some old classmates. Meanwhile, Sofia's relationships with Penguin and Gordon continue to evolve.

Jackson decides he needs some time off and invites the guys to join him on a day out at sea, while Arizona, April and Maggie treat a woman who is hiding a deadly secret.

A former colleague helps Annalise with her class action lawsuit. Laurel continues to investigate her father’s company. Asher confronts Michaela about her odd behavior. Details about Isaac’s past are revealed.

Olivia and Mellie assert their power like never before; Cyrus works on congressional approval to declare war in Bashran; a close watch is kept on President Rashad's niece.

When multiple patients of grief counselor Mia Vallens turn up dead, Sam, Dean and Jack investigate the mystery surrounding the murders and, each inadvertently, are forced to deal with unresolved grief of their own.

Mateo turns to stranger and stranger home remedies for an ear infection. Amy and Jonah decide to offer an alternative to Cloud 9’s terrible health insurance plan. Glenn enlists Dina to help him get medical attention for his own embarrassing condition.

Sheldon goes head-to-head with Wil Wheaton for the role of the new Professor Proton. Also, Penny steps in to take care of Halley when Bernadette and Wolowitz both wind up on bed rest.

Episode info coming soon ..

Vanessa faces off against Sam in a bloody showdown; Dmitri hears news that sends him on a warpath after Vanessa; Flesh, Mohamad and Lucky take desperate steps to save their lives.