In Florida, Linc and Tod go into the Everglades searching for the plane crash of a former WWII ace who never adjusted to civilian life. Joining them is the man's former Japanese foe.
While working as a camp counselor, Linc becomes involved with an older woman who's being stalked by her deranged former husband. Meanwhile, Tod tries to fend off the affections of a much younger female camper.
Working at a sawmill in Maine, Linc falls for a damsel who seems to reciprocate his love but soon begins pursuing another.
Tod and Linc become involved in a long lost son's grudge against his father.
In Minnesota, Tod and Linc become involved with an eccentric farmer who refuses to try new methods and his son who wants to sell the farm to make room for a motel to be built on the property.
In the backroads of Vermont, Linc and Tod try to help out an old farmer who's made it this far without modern conveniences but finds that time might be catching up.
While visiting Toronto in the Dominion of Canada, Tod and Linc try to help a stranded all girl jazz band get back to St. Louis.
Tired of their parent's quarreling, a two children take their baby brother and set up their own household.
Linc crosses paths with a former soldier from his unit in Vietnam who was responsible for the men in Linc's unit getting killed.
Working on a construction project in Minneapolis, Linc becomes involved with the neurotic sister of his boss.
On the east coast of Florida, Tod and Linc make the acquaintance of an alcoholic boxer and his galpal. Tod is skeptical but Linc wants to lend them a hand.
Tod and Linc are shocked when their seemingly shy librarian friend runs off with a drifter. Things go from bad to worse when it's discovered that the drifter is wanted for murder.
Tod runs into an old college chum from Yale in St. Augustine, FL and gets involved in the chum's scheme to find himself a wife.
A teenager holds Tod and Linc hostage after accidentally killing a policeman.
Tod is kidnapped by a political assassin who is his exact double.
Working in Tampa, Todd and Linc become involved with a family of eccentrics and the reading of a will.
In the series finale, Linc and Tod reach the end of the line in Tampa. Tod decides to get married and settle down while Linc heads on down the road to whatever destiny awaits.