An alien ship kidnaps Scooby, Scrappy and Shaggy who are camping out at a construction site. It's up to Fred, Daphne, and Velma to save the three from the space ship.
Freelance spy Sloane takes assignments from The Director, head of a secret agency. Assisted by Torque, a man with a detachable, multi-purpose hand.
A young boy shows up at the Harts gate in the middle of the night claiming to be Jonathan Hart, Jr. The child proves to be the unwitting pawn in his biological father's criminal plot.
A gifted teenager runs away from a scientific institute, and approaches David for help in locating her mother.
Boss Hogg doesn't horse around. especially when it comes to Lulu Hogg's Stakes Race. He aims to steal a sure winner...nut so does a gang of rustlers. Can Bo and Luke ride to the rescue?
When it is uncovered that Digger has a fatal genetic disorder, Cliff worries that he may have passed on the faulty gene to John Ross if indeed he is the father.
In 'The Baby' Tattoo becomes enamored of the little baby Patrick, whose parents were killed and Tattoo wishes to adopt him, but fears that because of his difference that he cannot give the baby the life he deserves. In 'Marathon: Battle of the Sexes"" Olaf, Bunny and Gretchen enter the marathon in order to save their hometown, meanwhile the race has been sabotaged by Dr. Bunk and Bruno. The tables turn when Mr. Roarke throws in a few curves.
Benson meets an attrative woman in the mansion and asks her out, not knowing she is a senator.
McGarrett finds himself stymied when Hawaiian nationalists and local underworld mobsters clash over a union election.
Buck is sent to the gambling city Sinaloa with Directorate special agent Marla Landers to rescue a young woman who has been kidnapped by the city's ruler, Velosi. Velosi plans to extract some information from the woman's mind in order to destroy one of his competitors. The information involves plans for the Draconian Hatchet fighters, which have been plaguing Earth's defense forces.
A visiting monk opts for a quick dalliance with a lady of the streets; Barney discovers to his horror that Dietrich may not be cut out for mugging detail—especially since it must be done in drag.
Burt and Saul escape the spaceship but find themselves in other danger. Jessica finally convinces Detective Donohue to leave. Millie comes to Danny's rescue. Eunice awaits Dutch's release from prison while Corinne bemoans her non-existent sex life with Tim. Chester resumes his philandering ways. Billy and his teacher share a kiss.
Mary Ellen subs as the county nurse. John tries to prove to the army that he really did graduate from high school. John can not find his diploma so he takes another test.
The small nation of San Christos has a new progressive, America friendly, president. His hold on power is fragile and he could be toppled if the rumor of an American supplied Diphtheria vaccine is killing the children it is supposed to be saving. Quincy and Sam are sent to the country to find out the truth and save the children, if they can.
Things are not as they seem at the Bradfords when Merle's sister, Linda Mae, comes from the farm and visits the Bradfords and is shocked at what she finds. Joannie talks Nancy into playing a stripper in her play. Susan panics when she hears that Merle was injured in a game. It's a comedy of errors when Linda Mae calls the police after misunderstanding the family's crazy life style.
Kelly is set to be maid of honor at the wedding of her best friend, Sharon. They discover that there have been several near misses on the groom's life and the Angels are called in to investigate.
Working two jobs and raising her kids takes its toll on Elaine, who seems to be losing her marbles.