
Bernie and his wife, Wanda, reluctantly step into the role of parents when his sister drops off her three kids -- naive Bryanna, nerdy Jordan and teenager Vanessa -- en route to rehab. His views on child rearing are hardly politically correct, but Bernie tries his best.

Bernie is overwhelmed by the task of getting the children ready for their first day of school; Jordan pretends to be sick, Vanessa refuses to come out of the bathroom and Bryana wants to have her hair braided.

The pool is being drained, and the air conditioner is broken; Bernie takes the children to a water park on the hottest day of the year.

Wanda gets a week of vacation and decides to spend it with the kids.

Bernie tries to show the children who is the king of the castle after he realizes everything he says to them goes through Vanessa first.