Watch a sneak peek and check out photos of the upcoming episode MERCY titled "Too Much Attitude And Not Enough Underwear" Episode 21 airing Wednesday May 5 on NBC (8-9 p.m. ET).
Episode Synopsis: When a friend from their Iraq days shows up unexpectedly, Veronica (Taylor Schilling) and Sands (James Tupper) are suddenly faced with a life-altering decision. Sonia (Jaime Lee Kirchner), increasingly intimidated by a stalker's threats, gets help from a surprising source, while Chloe (Michelle Trachtenberg) worries that her boyfriend is causing irreparable brain trauma by playing football against medical advice. And, after Angel's (Guillermo Diaz) friend is brutally beaten, Briggs (James Van Der Beek) worries that his mafia connections may have played a role. Meanwhile, a former flame (Jennifer Esposito) comes back into his life, with dangerous consequences. Diego Klattenhoff, K.K. Moggie, Patrick Yeoman, and James LeGros also star