After extracting alien DNA from a sample found on an asteroid, Dr. Piranoid tries to gene-slam the entire planet with this alien DNA mixed with manta ray DNA. The Street Sharks are sent up to space, per the president's request and help, to not only stop Dr. Piranoid's gene slamming plan, but also defeat the alien monster that was released from the sample. They end up getting help from Dr. Terrence Morton, who ends up becoming Mantaman in order to help fight the alien.
Hercules accompanies a town's citizens, cursed by Hera because of a theft at her temple, on a perilous journey to a city offering safe haven.
Pursuing a Maquis raider to an unstable moon, Kira becomes trapped within an expanding crystal formation that threatens to engulf her. Meanwhile, Nog attempts to persuade a skeptical Commander Sisko to write him a letter of recommendation to join Starfleet Academy.
Clark finally finds the courage to ask Lois out on a date which she accepts after thinking about it for a while. But their plans are ruined when Dr. Gretchen Kelly (Denise Crosby) brings Lex Luthor (John Shea) back to life. Lex is determined to get his fortune and Lois back and kill Superman and works with Gretchen and his old servant Nigel (Tony Jay) to achieve it. When he learns that Rollie Vale (Christian Clemenson) (who is in prison following the events on the episode Metallo) has kryptonite in his possession, he visits him in prison and makes a deal with him; his freedom and money in exchange for the kryptonite. Lex manages to break Vale out and he also kidnaps Lois to force her come back to him. Back at Lex's hideout, Lex gives the kryptonite to Nigel to keep it safe, but Nigel betrays Lex by stealing it and shooting a bolt at him before escaping. Gretchen is accidentally killed during a scuffle and an argument with Lex after she pushes Lois into a rat pit. Superman arrives to save Lois and when Lex realizes that he will be led to jail, he tries to kill himself like he did the last time. This time though, Superman stops him and he ends up behind the bars while Lois and Clark try to reschedule their first date.
On their 25th wedding anniversary, Peggy goes out with Marcy to a posh health spa where Peggy gets coned out of all her money by a gift shop employee selling cheap beauty items. Meanwhile, Al is in trouble when the old and senile Buck buries in the back yard the anniversary gift necklace he plans to give Peggy, which prompts him, Bud and Kelly to literally dig up the entire back yard looking for the necklace.
Pulled to the far side of the galaxy, where the Federation is seventy-five years away at maximum warp speed, a Starfleet ship must cooperate with Maquis rebels to find a way home.
Krusty the Clown's reckless spending forces him to open a clown college to keep afloat. New graduate Homer discovers the perks and perils of being Krusty.
A string of thefts at a student hostel run by Miss Lemon's sister ends in death and Poirot has a number of plots and sub-plots to untangle. A certain mouse is the only witness to a string of murders.
The Terror meets The Tick for the first time, and tries to take over The City.
In the inner computer world of Mainframe, a guardian program sprite and his friends defend the system from threats from viruses and the User.
Follows the lives and loves of four close, but very different, sisters of the Reed family living in Winnetka, Illinois.
Professional writer and amateur sleuth Jessica Fletcher uses her intellect, charm, and persistence to get to the bottom of every crime she encounters.
Duncan MacLeod is Immortal, and must live in modern society, concealing his true nature while fighting other Immortals.
The Planeteers are shrunk by Sly Sludge and send to a dump. They manage to build a plane to escape but the effects of the shrinking ray is wearing off. So the Planeteers call Captain Planet for help.
A young Bulk and Skull are on the run with the picture of the rangers which is exactly what Lord Zedd, Goldar, and the monster are after. Alpha 5 is charged with regaining the picture so that the rangers will be freed. Once released, they must destroy the monster as well as the heavily guarded Rock of Time to undo the spell.
Spencer Smythe's son Alaster is hired by the Kingpin to get revenge on Spider-Man and everyone who had a hand in Spencer's death. He rebuilds the original Spider Slayer, along with two more.
After the obituaries of four identical men are e-mailed to Mulder, the agents are contacted by a shadowy CIA agent who tells them about a bounty hunter sent to wipe out the beginning of a colony of clones. Meanwhile Mulder is distracted by the sudden reappearance of his sister Samantha.