Marilu Henner Marilu Henner

Things are about to get awkward at Casa de Longworth.

On Monday's The Glades (9/8c, A&E), Jim's mom Joan (Marilu Henner) drops by unannounced — which wouldn't be so bad if her estranged husband Michael (Corbin Bernsen) weren't still staying with Jim (Matt Passmore) and Callie (Kiele Sanchez).

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So what happens when Mama and Papa Longworth come face-to-face? And how long is Joan planning on staying? Check out the exclusive clip below to find out.