Will Hawkes

The guys are invited to a wedding of a mutual friend. Nick, fearful he will run into his ex-girlfriend Caroline (guest star Mary Elizabeth Ellis), asks Jess to be his date. Meanwhile, Winston takes his role as an usher very seriously and gets competitive on the dance floor with a young guest. Schmidt not only catches the eye of a beautiful woman (guest star Katie Cassidy), but also his “frenemy” Gretchen (guest star Natasha Lyonne) whom he sleeps with at every wedding reception.

April’s sisters arrive to help celebrate April’s upcoming nuptials and quickly get on her nerves. Matthew and Jackson are forced to work together when they witness a terrible accident, Callie and Arizona work hard to reestablish their relationship and Cristina is pressured to live stream an upcoming surgery. Meanwhile, a familiar face returns to the hospital.

A homicide leads Nick (David Giuntoli) and Hank (Russell Hornsby) onto the dark and mysterious path of a local Native American power quest. Meanwhile, Juliette's (Bitsie Tulloch) erratic behavior lands her on the wrong side of the law. At the spice shop, Rosalee (Bree Turner) and Monroe (Silas Weir Mitchell) are on a mission and call on Captain Renard (Sasha Roiz) for help.