Boner flunks out of college and joins the Marines.

Carol's boyfriend is injured drinking and driving.

Mike writes test answers on his shoe soles.

The Seavers begin to make room for baby, relegating Ben to the guest quarters and making the others lament the changes bound to come. Meanwhile, Maggie grasps for a way to tell her boss she is pregnant.

Ben invites a street girl home for the holidays.

Mike and his friends go to a college party and have to decide whether to use drugs or not.

Maggie and Jason try to keep Mike in his room to complete an English paper, but Mike's mind is of course elsewhere.

Jason takes Maggie on a tropical getaway to lift her spirits after her father's death, trusting Chrissy to Mike and Carol.

A new school year brings boredom, bullies, and romantic mix-ups.

Maggie wants Jason to fire the elderly handyman he hired to fix the furnace, but he refuses because the man is a friend.

After their success in the school play, Mike and Monica set their sights on a Broadway audition for ""Our Town.""

Great expectations turn sour at the Dewey High dance after Mike hears Lydia's voice; and Ben and Stinky find themselves in a seedy diner eyeing a pinball machine that pays real money.

Ben gets spooked at the prospect of asking a girl to a Halloween party; Jason becomes a disruptive force at Lamaze class.

Mike takes Ben girl chasing.

Jason embarrasses Mike at a Bruce Springsteen concert when they are interviewed together.

Ben gives Jason a very expensive birthday present, causing speculation on how he can possibly afford it.

Carol sneaks out of the house for a date.

Mike's infatuation with a Madonna look-alike worries Maggie.

Jason and Maggie want to go to a mountain lodge for a weekend, but are reluctant to leave the kids alone.

Mike doodles on his aptitude test and winds up with an IQ score of 27.

Mike's practical-joker uncle Bob visits from the hereafter.

A cheerleader befriends Carol solely to meet Mike.

A con man sells Mike a "magic" rock.

A travel snafu strands Julie with Mike.

Ben has been calling an X-rated phone service.