In the episode, titled "Brace for Impact," after an awkward conversation with Jackie, Gloria decides it's for the best if she calls things off with Patrick. Denise tries to help ease the tension between Gloria and Jackie. Michael bumps heads with the new Air Force Colonel, Kat Young. Joan is reprimanded when she drops the ball at work to attend David's basketball game. Maggie attempts to bond with Caroline. Eddie and Patrick arrive in Afghanistan.
"Brace for Impact" airs Sunday, April 21 at 9/8c. Watch a sneak peek in which Joan is an hour late for work and leaves a bad first impression on Air Force Colonel Kat Young: