Chris tries to find a baby sitter so he can go to a basketball game without his ex-wife finding out; Gary and Marny get some time alone in an unusual spot; Nick forgets something important.

Nick confesses to having a shared past with Chris' new girlfriend; Gary steels himself for the consequences of forgetting his anniversary.

After having four boys, Marny wants to try for a girl; Sheila plans and signs everyone up for a child CPR class.

Gary experiments with unconventional discipline tactics; Marny insists on helping Chris; a school project leads Nick to feel overly competitive.

Marny agrees to take care of the kids so Gary can have a break; the guys help Sheila move in hope of getting back Chris' Giants tickets.

Nick goes to war with the new co-op board president, Lydia (Marissa Jaret Winokur), when she forbids his annual Halloween decorations.