Concerned about their workaholic uncle's stress levels, the triplets and Webby decide to get him a pet to relax him. Unfortunately, the pet they end up with, a lemming named Lucky, causes nothing but trouble, culminating in his running away with the locket containing the Money Bin's new combination.
This episode contains examples of the following tropes:
- Analogy Backfire: After Scrooge asks Launchpad if he's sure he can get them to Norway, Launchpad replies he has as much confidence in himself as Scrooge does. Scrooge's response:Scrooge: Uh oh.
- …And That Little Girl Was Me: After Scrooge tells the kids about how sometimes the most thoughtful deeds don't turn out as planned, Launchpad concurs, saying how one time when a friend of his was sick, he tried to surprise him with a big Breakfast in Bed, only to accidentally spill it on him. Then Scrooge irritably reveals that he was the sick friend.Launchpad [touched]: You remembered.
- Aside Glance: Scrooge gives a look to the audience after Launchpad completely misses his irritation at the "Breakfast in Bed" incident he just told them about.
- Assurance Backfire: When Scrooge believes he'll never see his money again, Launchpad tries to console him by saying he still has him for the rest of his life. This doesn't make Scrooge feel any better.
- Breakfast in Bed: After the boys and Webby cause chaos by giving Scrooge a pet lemming, he tells them that sometimes even well-meant gestures go poorly. Launchpad chimes in with a story about a time he brought Scrooge breakfast in bed while he was sick and accidentally spilled it on him.
- Brick Joke: After the kids' fishing trip has turned up nothing but footwear, one of the triplets says Scrooge could open a shoe store if he had come along. Later, after Lucky has run off with the combination to the vault, Louie says that they should have given him the footwear they caught.
- The Cat Came Back: After Barnacle Biff tries to give Lucky away to the kids, the lemming runs all the way across town back to the Moony Gull.
- Catch a Falling Star: Scrooge accidentally sits on Lucky, who bites him, causing him to fall off the mast. Luckily, Launchpad is just in time to grab him before he falls into the ocean.
- Chase Scene: Scrooge spends much of the episode chasing Lucky, even having to go to Scandinavia to do so.
- Chekhov's Gag: The pile of footwear the kids catch is initially just a comedic sign of a bad fishing trip, but later Webby tells a trio of bare-footed sailors about the shoes in exchange for information on the Moony Gull's destination.
- Exactly What It Says on the Tin: This is indeed an episode about Scrooge's pet.
- Gilligan Cut: Just after the boys and Webby have decided that getting a pet will solve Scrooge's problems, the scene cuts to Captain Fry telling a sailor that Lucky is nothing but trouble.
- Ironic Name: The lemming the kids get Scrooge is called Lucky, but he causes nothing but trouble.
- Nice Job Breaking It, Hero: The kids accidentally cause the entire plot by getting Scrooge Lucky as a pet.
- Noodle Incident: Some unseen time in the past when Scrooge was sick, Launchpad tried to bring him breakfast in bed, only to spill it all over him.
- No Plans, No Prototype, No Backup: The only copy of Scrooge's new lock combination was in the locket Lucky accidentally took, and since Scrooge hadn't memorized it yet, he was at risk of losing access to his fortune.
- Not Big Enough for the Two of Us: Captain Fry says that the galley is not big enough for both him and Lucky.
- Screw This, I'm Outta Here: At the start of the lemming migration, everybody in Norway leaves town.
- Ship Tease: Scrooge keeps a figurine of Glittering Goldie, which he addresses as "darling", and when the lemming knocks it over, he dives to keep it from hitting the ground.
- Troublemaking New Pet: The nephews and Webby, looking for a way to help Scrooge feel less stressed, get him a pet lemming, not knowing the lemming lost his old home for being too troublesome. He knocks Scrooge's figurine of Goldie over and then runs off with the new combination to his vault.
