Helen's brother is Harry Burton, a wealthy bachelor who, although never having had one, is an expert on knowing how to raise children.

When Tom and Helen receive a letter from Harry, in which he announces he will travel to them for a vacation, they see an opportunity to get a break from the kids.

He reluctantly takes the position as the babysitter of his nieces and is escorted by Alice Mayton, the Lawrence's attractive neighbor.

Harry is only irritated by their constant attempts to comfort him and is not able to take advantage of his own advice on raising children.

Coincidentally, Tom and Helen are traveling on that train to surprise the girls with an early return.