While Ward and June attend a wedding on Saturday, Wally and Beaver are planning on hanging out at the fire-hall with their friend, Old Pete, to polish the fire truck. The boys' plans are changed for them when Herb and Janet Wilson, friends who are driving Ward and June to the wedding, bring along their four year old daughter Helen - nicknamed "Puddin" - since their babysitter canceled on them at the last minute, meaning that Wally and Beaver are stuck babysitting Puddin. June is worried since neither Wally or Beaver have babysat before, but the only other option is to bring Puddin to the wedding. Although June checks in periodically with the boys by telephone, the boys get into a bit of trouble when Puddin locks herself in the bathroom, and refuses to unlock the door. Wanting to be responsible, instead of telephoning their parents, they try to figure out how to get her out while she wreaks havoc in the bathroom. Their plan requires the assistance of their five year old neighbor, Bengie Bellamy.
—Huggo