Joy of Grief
A grief counselor (named Joy, of course) comes to Sealab to counsel the grieving, grief-stricken crew after the grievous death of a crew member. Lots of group hugs ensue, as well as a Grief Dance that's not as fun as people were hoping it would be. And also a bunch of murders.
A mysterious illness sweeps through the corridors of Sealab like a wildfire. A germy, icky, nosebleedy wildfire. As Sparks and his gang search for Feverheads to bash and Quinn searches desperately for a cure, Debbie makes preparations for her best 30th birthday ever.
Pretty much just like the movie it almost sounds like, which stars the incomparable Burt Reynolds. Mmm, actually it's more like if "The Longest Yard" and "Hooper" had a baby, with just a skoosh of "Smokey and the Bandit II" thrown in for good measure. But NOT "Smokey and the Bandit III." No sir, not on your ass.
Return of Marko
The much-ballyhooed return of Marco finally occurs in this eponymously-titled episode, with Marco playing the titular Marco. Marco, Sharko. Sharko, Marco. We'll just leave you two to get acquainted. Also, don't drink that pee.
Deep within the Great Salted Lake of Many Fishes, Sealab has a slight problem: it's sinking into an ancient Native American burial ground. Can the never-before-mentioned crewmember known as John Bear summon the wisdom of the Great Spirit and save the doomed crew? And are those slots really the loosest in town?