The family arrives at a remote village in Brazil to attend the blooming of a rare large flower, the Drosera occidendum, in the town's plaza. Webby is immersed in the sightseeing and encourages Huey Dewey and Louie to look around, but Dewey is too preoccupied with taking selfies to show themselves at the moment. Donald reveals the purpose of the trip is for a reunion between him and his band, the Three Caballeros, whom Scrooge complains were a garage band Donald and his college friends formed in their youth. Above them, an airplane drops off José Carioca while nearby, Panchito Pistoles dramatically leaps from the shade and plays an advanced guitar solo. Donald greets them and they reminisce about their younger days before getting to talking about what they're up to now. José claims he is now a successful travel agent booking and paying for the family's trip while Panchito is now an international pop sensation. When they ask Donald about himself, Donald, worried about what his friends will think of him if he's done nothing since college, asks Huey, Dewey, and Louie to help him build up a fake story to impress his friends. Scrooge cooperates with the ruse to avoid having to pay for the trip lest José finds out they were lying. Donald tells his friends he is the billionaire owner of McDuck Enterprises taking care of Scrooge (playing the part of his ailing uncle while conspicuously slapping Donald). Nearby, Webby sees Dewey takes another selfie. Webby reprimands him over ignoring the experience, but Dewey ignores her irritation and has Louie take his selfies.
At a restaurant, Huey and a reluctant Scrooge cover for Donald while Webby gets exasperated with Dewey's investment in selfies. When the bill comes, Donald, Panchito, and José all attempt to avoid paying before Donald does use Scrooge's wallet, to Scrooge's anger. The group then leaves the restaurant, though Webby hears a strange hissing noise coming from the waitress but then dismisses it.
Webby continues to explore, but Dewey continues selfies with Louie retorting that the pictures show him doing it and therefore doesn't need to deal with the less-appealing experience. Meanwhile, Donald, Panchito, and José talking about their time playing as the Three Caballeros make them feel morose over having to leave their carefree days behind. However, after listening to some music and getting the spark of joy back, they decide to reunite the band using Donald's (Scrooge's) fortune. Huey suggests Donald stop the charade, but Donald insists that he needs this opportunity. Elsewhere, Webby asks a woman for information about the town. Receiving robotic responses of "Of course", "Have a great day", and "Thank you" from the resident, Webby trips over a vine and sees the rest of the woman that sends Webby back to Dewey and Louie. Webby uses the pictures to show them the truth: the townspeople are all puppet vines connected to the flower. Exposed, the flower reveals its true, carnivorous form.
While the Caballeros prepare for their performance, Huey and Scrooge are alerted by the others the bloom is a trap to lure prey for the flower. The others are soon captured by the flower's vines in their attempt to escape, with Scrooge unable to fight due to committing his body to act elderly. Donald tries to convince Panchito and José to leave but the two accuse Donald of leaving the band behind again. Donald is forced to admit his lie, though José, moved by Donald's admission, admits he was lying and is actually a flight attendant who used his airline points to pay for the trip. Panchito is angered for their deception but he also comes clean as a birthday party performer who hoped to relaunch his career. The three reconcile for lying to each other right as the flower finds them. To save the others, the Three Caballeros perform a song to pulverize the vines and reposition Scrooge's back from the singing. Noticing the negative effect Donald's voice has on the plant, the Caballeros sing a high note and they successfully devitalize the plant. As the group then heads for home, Dewey decides to delete all the photos on his phone since it recorded Dewey tossed around by the plant. Huey remarks to the Caballeros that being true to oneself will work out, and they all agree to get the band back together before Scrooge, still pretending to be a weak old man, destroys Panchito's guitar to prevent the idea. Back at the village, a seed from the plant's remains falls and burrows itself into the ground, and a new flower sprouts up.
Panchito greets the boys by saying "saludos amigos", a reference to the film of the same name in which José was introduced prior to both appearing in The Three Caballeros. Also, the way he greets them with a firm handshake is similar to the way he greeted Donald and José when they first met in the second movie.
Another reference to Sauludos Amigos, is when Donald, Jose, and Panchito dance to the music, Donald uses his hat accordian, just like Jose used Donald's hat in Sauludos Amigos.
This is the second time the fast version of the Intro was played;the first being in The Great Dime Chase!
When Panchito proclaims "The three caballeros ride again", it's a reference to the comic of the same name, written by Don Rosa
This is the first episode in the series where the title card and credits precede the opening theme.
Panchito got two calls claiming it was from his agent. When he revealed his truth, fans assume the calls were from the parents of the child he was supposed to entertain.
Panchito having 2 phones instead of two guns is a reference to Steven Spielberg's controversial re-edits to the 20th anniversary edition of E.T.: The Extra Terrestrial.
The presence of the Three Caballeros in DuckTales was first announced at San Diego Comic-Con 2018, where they were "accidentally" previewed as characters appearing in the second season. Upon the crowd's wild reaction, voice actors Danny Pudi, Ben Schwartz, Bobby Moynihan, and Toks Olagundoye leapt out of their seats and began running through the audience high-fiving everyone.