When Hillary and Warren misbehave on Kate's watch, Kate turns to Diane for help in disciplining them, and Pete and Jackie try to set a good example by taking Bert on a nice outing together, but it proves to be harder than they anticipated.

Kate decides she wants in on Jackie's latest business venture of catering and delivering healthy kid lunches, but when they disagree on quality versus quantity, things get very messy. Elsewhere, Pete takes Warren and Bert to karate lessons in hopes of teaching them discipline and integrity, however, the instructor Sensei Rick has a more combative approach.