Christina Applegate, Will Arnett

It's time to get schooled.

In this week's Up All Night, Chris (Will Arnett) and Reagan (Christina Applegate) take baby Amy to a play group, though it's not a playful group. Chris and Reagan are the "aggressive" new parents when it comes to ... peek-a-boo. If they can't get a simple game right, will they ever be fit parents? Check out an exclusive clip from this week's episode to find out:

Up All Night airs Wednesdays at 8/7c on NBC.