The Seavers hire a nanny for Chrissy.

A travel snafu strands Julie with Mike.

Boner flunks out of college and joins the Marines.

Guests bicker at the Seavers' 20th-anniversary party.

Jason punishes Carol and Ben unequally for the same offense when they are both caught after sneaking out for dates without permission.

Jason intervenes when Mike gets bad grades in psychology.

Jason's mother plans to wed aboard a cruise ship.

Jason tries to mend his mother's broken wedding plans.

Maggie opposes Mike and Julie's wedding plans.

Julie and Mike suffer prenuptial jitters.

While on a Valentine's Day dinner date with Kate, Mike runs into Julie at the restaurant.