Todd Giebenhain

Leonard is pleasantly surprised when his mother, Beverly, comes to visit and she’s genuinely kind toward him – until he finds out the real reason why she’s there; Meanwhile, Denise and Stuart overstay their welcome at the Wolowitz house.

When Francis is left in charge of his brothers, mayhem ensues, and Malcolm gets hurt, requiring hospitalization.

At college, Sheldon decides to expand his responsibilities and become a dorm resident adviser; Meemaw and Dale make a sketchy business deal; Mary and George Sr. rekindle their romance.

On Monday morning, Malcolm (Frankie Muniz) and his brothers convince their ailing mother (Jane Kaczmarek) that it's Sunday.

Hal, Malcolm and Reese wander into a desert artillery range after being banned from a casino for counting cards.

When a man is found murdered inside his supposedly impenetrable doomsday fallout shelter, the squad must figure out how and why he was targeted. Jane finds it difficult to focus on the case when she discovers Korsak is looking into retirement and Frankie is keeping a secret of his own.