Murphy, bored to tears, starts his own pirate radio show called "Howlin' Mad Murphy" until the FCC Search & Destroy team shuts his @*! down!

Sealab is in danger, but nobody cares. The crew wonders what it would be like to be robots, while Quinn tries to deal with the impending disaster.

Capt. Murphy can't seem to find his ""Happy Cake"" cupcake oven anywhere. He sends the Sealab crew out to find it, only to find it's in the (many) hands of a giant octopus.

Debbie wants to have a baby so she starts to interview the crew to see who will be the father. Marco makes time with the other Debbie (aka "Black" Debbie).

A flesh-eating invisible monster has invaded the Sealab and is killing everyone. The crew tries to lure it into a trap by having Dolphin Boy wear a life-jacket made of meat.

Under orders from Capt. Murphy, Stormy & Quinn attempt to hook up pirated cable-TV. After getting a picture, something goes haywire and sends Stormy & Quinn repeatedly back in time about 15 minutes. Then, after getting a picture, something goes haywire and sends Stormy & Quinn repeatedly back in time about 15 minutes. Then...

An orphan says he is terminally ill so he can go to Sealab.

While lounging in the pool, Dr. Quinn is repeatedly electrocuted by Stormy throwing various devices into the water. Quinn's resulting hallucinations are strangely hysterical.

Murphy is stuck under a soda machine. To make matters worse, everyone else is out at a concert and can't help him! To make matters worse still, who should happen upon poor, defenseless Murphy but an angry scorpion and a tooth-collecting maintenance robot?

Murph blows the whole Sealab budget on making the place "Feng Shui" paying a scam artist to redecorate the whole place.

Due to a faulty door, the Sealab crew gets locked in a tool closet. A few black eyes result as they try to get out, but then they discover that a pack of unfed killer dogs are running around Sealab.

Sparks starts pushing a new, "mostly kelp" energy pill that proves to be highly addictive.

Behind the scenes at the chaotic "set" of Sealab 2021. In this episode, the voice actors use their own names rather than the characters'. The episode is a parody of Living in Oblivion by Tom DiCillo.

A series of unexplained thefts leads Murphy to declare "Martian law". In the ensuing madness, everyone ends up blaming Quinn for all the thefts.

After running up thousands of dollars in credit card debt, Murphy can't come up with a way to pay for it all...until Sparks intervenes. He takes out life insurance policies on the crew before sending them on a fatal fool's errand, and proceeds to kill Captain Murphy with a homemade tesla coil in the hot tub. However, Captain Murphy grabs Sparks as he is being electrocuted, killing Sparks as well.

A mysterious Asian visitor brings an irresistibly cute Gloop (reminiscent of shmoos) onto the station, which Murphy names Squishface. There are two problems, though: Gloops stink, and they multiply so fast that eventually Sealab is overrun with them. This episode parodies "The Trouble With Tribbles", Gremlins, and Aliens. There is also a reference to the popular fps shooter Return to Castle Wolfenstien when Debbie calls out "I need ammo!" and a bullet icon appears over her head.

Who should come aboard SeaLab but the Bizarro versions of the crew, such as Bizarro Debbie, Bizarro Marco, Bizarro Murphy, Bizarro Sparks, Bizarro Stormy, and a sort-of Bizarro Dr. Quinn. The Bizarros hold the real crew captive, before beginning to torture the real crew. With Bizarro Torture.

Murphy's golf game is, due to a lack of golfballs, cut short. Murphy embarks on a frantic quest to find the Pro Shop. On the way, Murphy runs into a Monster-Hesh, snotty telephone operators, the Dolphin Boy, and a perfidious Eggers.

The crew of Sealab (along with a vapid gossip-show host, a bear in lederhosen and guest stars Kid 'n Play) star in a sneak preview special for the movie Tinfins, complete with plenty of ads for the restaurant Grizzlebee's: "You'll wish you had less fun".

A nuclear submarine crashes outside the station, and the crew of Sealab (in a rare occurrence) must work quickly to stop an environmental disaster from happening.

Capt. Murphy's attempts at a happy Alvistide go awry thanks to non-Alvian crew members, an uncooperative electrician, and Alvis himself "crapping the buffet".

An accident leaves Quinn comatose and Stormy allegedly smarter. Have they really switched brains?

Dr. Quinn forcibly takes a well-deserved vacation, inside Sealab's walls, the crew attempts to find out what he's doing.

The electricity is out in Sealab, and the crew tries to turn the power back on. This episode shows the outside of the Sealab for 8 minutes, during which time nothing happens besides Stormy destroying a section of the Sealab, and occasional appearances by fish, sharks, and bubbles.

A loophole in the Sealab charter turns everyone into captains, except Stormy (too stupid), Quinn (too proud to exploit the loophole), and the Chinese crew members (because of previous Asian accomplishments, including anime, among other things). How will Sealab survive? And where did Capt. Murphy go?

A network executive audits the set of the hard-hitting action drama Sealab 2021, with hopes of somehow salvaging the dwindling series.

Debbie and Quinn break up, while Dr. Virjay gets his old rock band back together.

Captain Murphy opens Sealab to tourists, eventually prompting Dr. Virjay to renounce his religion, and begin to eat meat from cows.

Kommissar Murphy brings Marxist-Leninist ideals to Sealab.

Hollywood Actor Beck Bristow (Brian Bloom) comes to Sealab to study for a television role.

Due to an incident with Chubby Carol, Quinn (who doesn't think Carol is so chubby) is blackmailed into giving each crew member a robot body, but what is to become of the crew's old bodies?

The Sealab crew attempts a daring rescue mission to Ice Station Zebra, one of whose inhabitants has turned to cannibalism. They are accompanied by a German who "came with the sub," bears more than a passing resemblance to Jürgen Prochnow and is given to firing his pistol inside the sub and shouting "Sieg Heil, Cornelius Drebbel!" Unfortunately, the two inhabitants of Ice Station Zebra cannot be rescued due to a lack of wetsuits, thanks to Debbie packing an attractive dress for herself instead.

As Captain Murphy leaves for The Great Spice Wars, a new captain, Tornado Shanks, is given the helm.

A delivering mishap and some dishonesty on Sparks' part pockets Sealab a brand new Asteroid Smasher/High-definition Television. Unfortunately, the ASHDTV was supposed to go to Spacelab so they could destroy an asteroid hurtling towards the earth.

Dr. Quinn teaches Debbie Love's class of 4th-graders including Fatass McBlobbicus, while having to deal with Tornado Shanks' warped and unscientific view of education. The classic story "The Scarlet Ibis," by James Hurst, is ripped off as part of a classroom discussion of death. All the while, cuts are made between Debbie Love's classroom and the spa Love is visiting, creating a series of double entendres.

The last of Captain Shanks' brothers (who are all named for mythical Greek heroes) dies from a heart attack while taking a dump; all the while, Hesh and Debbie Dupree get married.

Quinn, White Debbie, and "He Who Smokes Bitches" Stormy Waters venture deep into Tornado Shanks to destroy a malignant tumor in Captain Shanks' head.

Tornado Shanks declares Sealab a sovereign nation in order to be his own tax haven. A wave of secession fever sweeps through the entire crew, with a half-dozen nations declaring themselves independent in a few minutes; with the help of two British businessmen, they are all soon armed with missiles allegedly loaded with nuclear warheads. When push comes to shove and every Sealab nation declares war on every other one, however, the nukes all turn out to be duds.

Stormy's meddlesome inquisitiveness uncovers Shanks' membership in a world-controlling society.

A team-building exercise goes horribly wrong when the Sealab crew are attacked by Chupacabras.

A grief counselor tries to help the Sealab crew through a hard time.

Zombies ravage Sealab as Debbie plans her (fifth) 30th birthday party.

Marco's illegitimate son applies for a job on Sealab. Can he pass the civil service exam with Debbie and Quinn helping?

Marco died three episodes ago. What's he doing back? Later, Marco and Debbie sing Antônio Carlos Jobim's "Waters of March" in Portuguese.

As it turns out Sealab was built on an ancient Indian burial ground and is now sinking into the ocean floor. The only hope to save Sealab is John Bear, Sealab's resident Native American. But in order to save Sealab Shank's must agree to turn the Mess Hall into a casino which he does. But once the casino opens John Bear still won't stop the sinking (or let Debbie have a lounge show).

Marco convinces Debbie to give up her "questionable" ways through a pep talk, leading her to find religion and dump Quinn. Meanwhile, Sparks recognizes the pep talk from a 60's show, which leads a drunken Quinn to sic the network on the fugitive TV star Marco.

Extreme rebel trillionaire, Max Stone, buys Sealab and ends up running it better than before.

The police want Shanks... Why? The story is revealed in reverse. But it involves a monster, a plan to improve the world, and Grizzlebee's.

Quinn and Stormy are stuck in a cave with only 10 minutes of oxygen while sealab burns.

Abalon, a terminally ill whale, comes to Sealab and asks Doctor Quinn to kill him. While Quinn wonders whether or not he could end a life Stormy recognizes Abalon as the star of a show called ‘I Gotta Have That Dick' and starts bugging him with fan fics. While Quinn examines Abalon's whale cancer Marco accidentally eats some of it and is inspired to create his own drink called F-YEAH!

All the water around Sealab has disappeared, and left Sealab high and dry. Where has it all gone?

The cast looks back over five years of "A Legacy of Laughter" in the style of one of those tacky TV reunion specials but of course since this IS Sealab, not all goes well.