Season 4, Episode 13
We love you Sealab 2021.
Season 4, Episode 11
Sealab is visited by a cherished old friend: Abelard the Talking Whale. Although he can't really talk; it's more like Quinn just makes him talk with a machine. And he's not so much an old friend; he's just some whale that happens to be dying.
Season 4, Episode 10
Stormy and Quinn narrowly escape a nuclear catastrophe, only to be trapped in an underwater cave by a thirty-foot, ravenous Great White! And they've only got 10 minutes of oxygen remaining!
Season 4, Episode 5
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.
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