Mike teaches at an urban high school.

Mike teaches at an urban high school.

Mike gets involved when he learns his prize pupil Luke is homeless.

Mike gets involved when he learns his prize pupil Luke is homeless.

Mike persuades Jason and Maggie to let Luke stay with them temporarily; then Jason's wine cellar goes missing.

Mike persuades Jason and Maggie to let Luke stay with them temporarily; then Jason's wine cellar goes missing.

Jason and Maggie compete to write a newspaper column; Ben hates his glasses.

Jason and Maggie compete to write a newspaper column; Ben hates his glasses.

Mike gears up for his big day as a TV soap opera star just as Luke gears up to move out of the Seavers'.

Mike gears up for his big day as a TV soap opera star just as Luke gears up to move out of the Seavers'.

Luke is afraid to visit the doctor, so Jason accompanies him -- but it's Jason who turns out to need surgery.

Luke is afraid to visit the doctor, so Jason accompanies him -- but it's Jason who turns out to need surgery.

Carol accompanies Maggie to a resort, which turns out to be hosting a singles convention; meanwhile, the all-male weekend planned at home is ruined when Chrissy is set home with head lice.

Carol accompanies Maggie to a resort, which turns out to be hosting a singles convention; meanwhile, the all-male weekend planned at home is ruined when Chrissy is set home with head lice.

Nouveau riche neighbors move in next door; Ben is forced to look after Luke on his first day of high school; Jason's scheme to let Chrissie stay up late backfires when the neighbors throw a lavish party.

Nouveau riche neighbors move in next door; Ben is forced to look after Luke on his first day of high school; Jason's scheme to let Chrissie stay up late backfires when the neighbors throw a lavish party.

Consumer advocate Maggie raps a vacuum cleaner that Ben broke without telling her.

Consumer advocate Maggie raps a vacuum cleaner that Ben broke without telling her.

The ghost of Maggie's father oversees the Seavers' visit to her childhood home.

The ghost of Maggie's father oversees the Seavers' visit to her childhood home.

While Jason and Maggie are away, the principal informs Mike that Luke's birth father is back in town -- and wants him back.

While Jason and Maggie are away, the principal informs Mike that Luke's birth father is back in town -- and wants him back.

Ben crams for a college entrance exam, but gets no help from Jason.

Ben crams for a college entrance exam, but gets no help from Jason.

Christmas brings anger and angst to the Seavers.

Christmas brings anger and angst to the Seavers.

Penniless Mike schemes to give Kate a skiing trip.

Penniless Mike schemes to give Kate a skiing trip.

Luke's homeless friend steals a Seaver momento.

Luke's homeless friend steals a Seaver momento.

Maggie and Jason put Mike on the spot for Luke's curfew problems.

Maggie and Jason put Mike on the spot for Luke's curfew problems.

A love triangle involves Ben, Luke and a classmate.

A love triangle involves Ben, Luke and a classmate.

Tired of being bullies, Ben takes karate lessons.

Tired of being bullies, Ben takes karate lessons.

Mike thinks his friend is a bad influence on Luke.

Mike thinks his friend is a bad influence on Luke.

Luke's father George visits the Seavers hoping that Luke has mellowed a little and would like to spend some time with him but Luke doesn't. He was about to leave when he collapses outside the door. He says that can't move, so they take him in. Jason and Ben offer to deliver his load, and they experience all sorts of chaos on the way. Mike thinks that George is faking his injury so that he could stay and Luke would have to talk to him. But the doctor tells Maggie who tells Mike that unless George stops driving trucks, he could become paralyzed. Mike talks to George and tells him to tell Luke but doesn't want Luke to pity him and doesn't anything else to do but be a trucker. Mike suggests that maybe he could open a truck stop. Luke finds George struggling to get up and they finally talk. The next day after Jason and Ben return, George tells them that he is giving up trucking and will open a truck stop and Luke's going with him. Luke says goodbye to the Seavers.

Luke's father George visits the Seavers hoping that Luke has mellowed a little and would like to spend some time with him but Luke doesn't. He was about to leave when he collapses outside the door. He says that can't move, so they take him in. Jason and Ben offer to deliver his load, and they experience all sorts of chaos on the way. Mike thinks that George is faking his injury so that he could stay and Luke would have to talk to him. But the doctor tells Maggie who tells Mike that unless George stops driving trucks, he could become paralyzed. Mike talks to George and tells him to tell Luke but doesn't want Luke to pity him and doesn't anything else to do but be a trucker. Mike suggests that maybe he could open a truck stop. Luke finds George struggling to get up and they finally talk. The next day after Jason and Ben return, George tells them that he is giving up trucking and will open a truck stop and Luke's going with him. Luke says goodbye to the Seavers.