When widower Mike Brady marries a lovely lady widow Carol Ann, their two families become one. These are the misadventures of this new couple, their six children, a dog named Tiger, and quirky housekeeper Alice.

Almost 20 years after the start of the original “Brady Bunch” the kids are grown up and have kids of their own. Everyone is having a wonderful time back at the family house for Christmas, until Mike learns of a structural problem in one of the buildings he designed. As he is inspecting the problem, the building collapses, trapping him inside. As the whole family waits by the pile of rubble, they fear the worst. Will Dad be all right?

Rock Hudson and Doris Day are together again! Jerry Webster (Hudson) and Carol Templeton (Day) are rival Madison Avenue advertising executives who each dislike each other’s methods. After he steals a client out from under her cute little nose, revenge prompts her to infiltrate his secret “VIP” campaign in order to persuade the mystery product’s scientist to switch to her firm.