The kids and Launchpad work together to capture a mystical money shark while Scrooge attempts to better his public image with a televised interview.
Scrooge and the kids return to the mansion after an adventure on a beanstalk with treasure to send to the Money Bin. Bentina Beakley, however, informs Scrooge that his Board of Directors have taken note of the collateral damage Scrooge's adventures have on Duckburg and the Board has set him up with an interview with Roxanne Featherly to positively boost his character. Meanwhile, Webby Vanderquack invites Lena to the mansion for a sleepover, but Lena slips an enchanted amulet among the treasure, where it starts merging with the gold inside the Money Bin.
Lena is then approached by the apparition of Magica De Spell, who outlines that her plan is to use the amulet Lena slipped, the Hunter's Stone, to find the Number One Dime and bring it to Magica to enact her revenge on Scrooge. Magica agrees to grant Lena her deepest desire for Lena's assistance, but warns Lena not to get attached to Webby. Exiting the bathroom, Lena notices Webby's research bulletin board and sees Scrooge has a disdain for magic. Webby then shows Lena a spellbook that she suggests trying it, although Lena quickly offers a pillow fight to surprise Huey, Dewey, and Louie with.
Meanwhile, Scrooge gets practice for his interview with Beakley. Huey, Dewey, and Louie also sneak into the Money Bin for money-diving when suddenly, a golden shark created from the Hunter's Stone emerges and eats Dewey. Horrified, Huey and Louie run back to the mansion for the girls' help. The kids and Launchpad McQuack take Donald's boat into the Money Bin to catch the shark. Lena is mad that Magica's plan involved creating a monster shark, or "Tiffany" as Magica calls it. Magica realizes Lena is growing sentimental towards the McDucks, to which Lena claims she is defending her cover. Magica only warns Lena to avoid Tiffany for the time being. Huey and Louie then try to catch Tiffany, but the shark pulls Huey and Louie by the rope and she eats them. Launchpad's attempt to crash into Tiffany only gets Tiffany to eat him and the boat whole. Lena subtly suggests using the Number One Dime to lure Tiffany, although Webby puts faith in their friendship to protect them until they then dodge Tiffany. This causes Tiffany to throw herself outside the Money Bin.
At the mansion, Scrooge loses his patience with Roxanne and ruins his interview. At that moment, Roxanne is notified of Tiffany at the Money Bin, provoking Scrooge to rush to the Bin to save his money. Tiffany uses her magic to steal the Dime off Scrooge and swallows it, so Scrooge charges at the shark but also gets eaten. When Tiffany approaches Lena, Webby pushes Lena out of the way and gets eaten before her. Shocked by Webby's loyalty, Lena chooses to save Webby instead of retrieving the dime and uses her magic to destroy Tiffany. Scrooge frantically tries to recover gold until Roxanne approaches Scrooge broadcasting that the money is attracting bystanders and benefiting the city. An exasperated Scrooge finally gets his Dime back but wonders how the shark came in the first place.
At the amphitheater, Magica berates Lena for her failure. Lena gets tired of Magica and tries to leave but fails. Magica reminds Lena that her desire is her freedom only she can grant, forcing Lena to comply with Magica and regretfully throws away her friendship bracelet she made with Webby. At the manor, Launchpad delivers Donald's boat back to Donald, albeit in disrepair.
- David Tennant as Scrooge McDuck
- Danny Pudi as Huey Duck
- Ben Schwartz as Dewey Duck
- Bobby Moynihan as Louie Duck
- Kate Micucci as Webby Vanderquack
- Tony Anselmo as Donald Duck
- Beck Bennett as Launchpad McQuack
- Kimiko Glenn as Lena
- Toks Olagundoye as Bentina Beakley
- Catherine Tate as Magica De Spell
- Keith Ferguson as Flintheart Glomgold
- Kari Wahlgren as Roxanne Featherly
- The episode and its title are a parody of the 1975 thriller, Jaws. Near the end of the episode, Flintheart Glomgold's diguise is a caricature of Steven Spielberg, who directed Jaws.
- The "Grimoire du Merlock" spellbook is a reference to Merlock the Magician, the main antagonist from DuckTales the Movie: Treasure of the Lost Lamp.
- Hack and Slash Smashnikov make a cameo near the end of the episode taking Scrooge's scattered money alongside Ma Beagle and Beagle Boys.