MacLeod stumbles across the trail of an Immortal, Xavier St. Cloud, who has lived in hedonistic splendor down through the ages by remorseless robbing and killing innocent men and women. MacLeod had nearly fallen victim to this remorseless killer behind the front lines during World War One, when Xavier used poison gas to loot a payroll truck. He uses even deadlier gas in modern day Paris, and MacLeod must track him down before he kills again. He succeeds in defeating Xavier, but the Evil Immortal escapes with his head. In a humorous yet touching subplot, Richie falls for a glamorous older woman, not realizing she is married, and Tessa must disentangle him from the woman's clutches.
Sully ends up badly beaten and partially paralyzed following a run in with buffalo hunters who were hired by the railroad to clear the buffalo and Indians out of the planned train path. As Dr. Mike, Cloud Dancing and the kids fight to help Sully regain the use of his legs, a con man who's passed himself off as an advance man for the railroad is in the process of swindling the townsfolk out of the deed to their property. Sully recovers and Dr. Mike unmasks the con man's plan thereby saving the townsfolk's property.
Robbie crosses over to the swamps and gets sold on the mammals' "swamp music", but they're liable to be sold out in a dinosaur record deal, which Robbie orchestrated.
Amid Maui's adventures, will...Dana marry Brian? Carol relax? J.T. and Cody find treasure? Brendan, Mark and Al win a helicopter tour?
At a party, Urkel, Eddie and Waldo get trapped on a fire escape. A heartbroken Eddie mourns his split with two-timing Oneisha, while Carl gives the cold shoulder to his mother's beau Fletcher, who has big plans for her future.
Jerry adopts Elaine's opinion about a woman he's seeing; then Elaine changes her mind.
McKenzie pursues a witness who could re-open Osgood's case; a murder-for-hire case involves Paros with a family friend; star-crossed lovers cross literary swords in the courtroom.
Martin gets the flu and he expects Gina to stay at home and take care of him. But Gina gets fed up with him acting like a baby and comparing her with his mother.
Sketches include: "Men on Film Festival" (excerpt from Season 3, Episode 10) "Rise to Stardom" (repeat of "Men on Films II" from Season 2, Episode 1; introduced by Chris Connelly) "Cliff Hanger" (excerpt from Season 2, Episode 24 and repeat of "Men on Film: Straight Man Out" from Season 3, Episode 2; introduced by Jeffrey Lyons) "Sponsors" (excerpts from Season 1, Episode 4; Season 1, Episode 7; Season 2, Episode 9; Season 3, Episode 16; Season 4, Episode 9; and Season 4, Episode 15; introduced by Michael Medved) "Ratings" (excerpts from Season 1, Episode 1; Season 1, Episode 4; Season 1, Episode 7; Season 2, Episode 9; Season 3, Episode 16; Season 4, Episode 9; and Season 4, Episode 15; introduced by Chris Connelly) "Men on Film Festival" (excerpt from Season 3, Episode 10)
Cliff and Norm mourn the closing of the Twi-Lite Drive-In Theatre and its associated memories of simpler times. In Ma Calvin's classic convertible, Cliff, Norm, Woody and newbie drive-inner Frasier - who ends up being trunk boy - head off to watch a Godzilla (1954) triple-header on the theatre's last night. The foursome have a mixed evening at the theatre, which includes enduring Cliff and Ma's rules of car etiquette and several run-ins with an angry car neighbour. But it's Ma's convertible that takes the brunt of the evening's battles. While the foursome are at the drive-in, Gus O'Malley, the previous owner of Cheers, stops by the bar. Sam offers Gus the opportunity to relive old times not only by tending bar, but managing the bar for the evening. Gus resorts to his old tactics of yelling and intimidation to get the staff to get working.
Hoping to impress Alex, Brian claims to know Clint Black. Helen and Alex are entertained while they expect Brian's scheme to attend a concert and meet him will backfire.
Crosetti focuses his investigation into the shooting of Officer Thormann on one suspect, while Lewis continues to investigate. Meanwhile, Pembleton and Bayliss pursue different leads in the murder case of eleven-year-old Adena Watson.
Briggs and Louis find themselves on an assignment in Jersey. It isn't long before they get on the wrong side of Jim Bergerac.
A deposit error dumping $16,000 in Vinnie's account tests his integrity; and Doogie must prove his integrity to a girl with a crush on him.
Hoping to boost Mark's confidence, Tim and Jill put him into a karate class. However, a boy starts bullying Mark, leading to a fight between Jill and the boy's mother!
When Kevin and friends are asked to write down the ways they feel inferior, they have trouble thinking of something. They don't have any problems picking on the new girl with the big nose. Ricky decides to ask her to an upcoming dance anyway, but all his friends laugh at him - none of them realising how insensitive they are being.
The absence of a murder weapon complicates the investigation into the murder of a drug addict who stole from her family to support her habit.