Brief synopses of each episode, courtesy of NBC, follow. Be forewarned, there are spoilers in each description. In "Let’s Be Bad," "Karen (Katharine McPhee) finds a new use for her acting talents as she joins Dev (Raza Jaffrey) at a high-powered government party. The drama between Michael (guest star Will Chase) and Julia (Debra Messing) heats up, as Eileen (Anjelica Huston) and Tom’s (Christian Borle) ambitious assistant Ellis (Jaime Cepero) forge an alliance. Ivy (Megan Hilty) senses trouble in her relationship with Derek (Jack Davenport)." Will Chase guest stars.

In "Chemistry," "Ivy (Megan Hilty) faces major problems as her voice begins to fail her. Julia (Debra Messing) struggles to avoid Michael (guest star Will Chase) – but she can’t. Eileen (Anjelica Huston) explores her inner hipster at a downtown dive bar with her new pal Ellis (Jaime Cepero), while Karen (Katharine McPhee) is an even bigger fish out of water, as she books a side gig at a bar mitzvah on Long Island." Jack Davenport, Christian Borle, Raza Jaffrey and Brian d’Arcy James also star. Will Chase guest stars.

For more information visit www.nbc.com/smash.